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1.
AIDS Care ; 36(4): 517-527, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37921364

RESUMO

This randomized pilot project evaluated an intervention promoting health care literacy around HIV, pre-exposure prophylaxis (PrEP), and stigma reduction using private social media groups that complemented existing HIV prevention services among female sex workers (FSWs) in Cameroon. The intervention was 12 HIV and sexual health videos tailored to FSWs that were released over 8 weeks through a secret Facebook group platform. In-person surveys were administered before, after the intervention, and three months later. No HIV seroconversions were detected; all participants completed follow-up and agreed to recommend the intervention to a coworker. Although the intervention was assessed to be acceptable and feasible to implement, poor internet connectivity was a key barrier. In time-series analysis, the intervention group participants reported improved PrEP interest, PrEP knowledge, and condom use along with reduced PrEP and HIV-related stigma, but no impact on sex-work related stigma or social cohesion. Similar results occurred in the control group. Cross-contamination and small pilot study size might have hindered the ability to detect the differential impact of this intervention. As communications technology increases in Cameroon, it is essential to learn more about FSWs preferences on the use of social media platforms for HIV prevention strategies.


Assuntos
Infecções por HIV , Profilaxia Pré-Exposição , Profissionais do Sexo , Mídias Sociais , Humanos , Feminino , Infecções por HIV/tratamento farmacológico , Projetos Piloto , Camarões , Estudos de Viabilidade , Profilaxia Pré-Exposição/métodos
2.
Pediatr Blood Cancer ; 68(7): e28997, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33719184

RESUMO

BACKGROUND: Before the year 2000, there was no dedicated childhood cancer service in Cameroon. The aim of this study was to investigate the progress made with pediatric oncology care in Cameroon from 2000 to 2020. METHOD: A literature search was conducted for published articles on childhood cancer in Cameroon and relevant documents, and conference abstracts were reviewed. The articles were analyzed under the themes: awareness, diagnosis, epidemiology, treatment, outcome, advocacy, partnerships, traditional and complementary medicine, palliative care, and capacity building. RESULTS: Low awareness on childhood cancer was addressed with education activities targeting the general population and health care professionals. Cancer diagnosis was achieved with cytology, histology, and simple imaging. Management for common and curable cancers was implemented with use of modified treatment regimens for low- and middle-income settings. Nutritional support was shown to mitigate the effects of malnutrition on treatment toxicity, and support was provided for transportation and accommodation. There was good collaboration between the pediatric oncology professionals nationally and twinning with international partners. Capacity building activities led to the availability of three pediatric oncologists and pediatric oncology-trained nurses. Advocacy nationally led to the support of the Ministry of Health with pediatric oncology-specific priority actions in the latest national cancer control plan. CONCLUSION: Childhood cancer should receive the necessary attention of health care policymakers in Cameroon. With continued commitment of government, nongovernmental organizations, charities, childhood cancer specialists, patient and parent groups, there should be an improved future for children with cancer in Cameroon.


Assuntos
Neoplasias , Camarões/epidemiologia , Criança , Protocolos Clínicos , Humanos , Neoplasias/epidemiologia , Neoplasias/terapia
3.
Matern Child Health J ; 23(1): 30-38, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30022401

RESUMO

Objectives We investigated whether a woman's role in household decision-making was associated with receipt of services to prevent mother-to-child HIV transmission (PMTCT). Methods We conducted a secondary analysis of the PEARL study, an evaluation of PMTCT effectiveness in Cameroon, Cote d'Ivoire, South Africa, and Zambia. Our exposure of interest was the women's role (active vs. not active) in decision-making about her healthcare, large household purchases, children's schooling, and children's healthcare (i.e., four domains). Our primary outcomes were self-reported engagement at three steps in PMTCT: maternal antiretroviral use, infant antiretroviral prophylaxis, and infant HIV testing. Associations found to be significant in univariable logistic regression were included in separate multivariable models. Results From 2008 to 2009, 613 HIV-infected women were surveyed and provided information about their decision-making roles. Of these, 272 (44.4%) women reported antiretroviral use; 281 (45.9%) reported infant antiretroviral prophylaxis; and 194 (31.7%) reported infant HIV testing. Women who reported an active role were more likely to utilize infant HIV testing services, across all four measured domains of decision-making (adjusted odds ratios [AORs] 2.00-2.89 all p < .05). However, associations between decision-making and antiretroviral use-for both mother and infant-were generally not significant. An exception was active decision-making in a woman's own healthcare and reported maternal antiretroviral use (AOR 1.69, p < 0.05). Conclusions for Practice Associations between decision-making and PMTCT engagement were inconsistent and may be related to specific characteristics of individual health-seeking behaviors. Interventions seeking to improve PMTCT uptake should consider the type of health-seeking behavior to better optimize health services.


Assuntos
Comportamento de Escolha , Tomada de Decisões , Identidade de Gênero , Infecções por HIV/psicologia , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Adolescente , Adulto , Fármacos Anti-HIV/uso terapêutico , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Mães/psicologia
4.
Diabetes Metab Res Rev ; 32(6): 544-9, 2016 09.
Artigo em Inglês | MEDLINE | ID: mdl-26891253

RESUMO

BACKGROUND: Human immunodeficiency virus (HIV) and certain antiretrovirals are associated with diabetes. Few studies have examined the prevalence of and factors associated with diabetes among HIV-infected individuals on combination antiretroviral therapy (cART) in sub-Saharan Africa; some report prevalence estimates between 3.5-26.5% for diabetes in Cameroon and 20.2-43.5% for prediabetes in sub-Saharan Africa. METHODS: In a cross-sectional study, HIV-infected individuals (16-65 years old) were screened for diabetes using haemoglobin A1c (HbA1c ). We further categorized HbA1C as normoglycemia (HbA1c < 5.7%), prediabetes (HbA1c 5.7-6.4%) or diabetes (HbA1c ≥ 6.5%). Dysglycemia was defined as HbA1c ≥ 5.7%. Logistic regression modelling was used to assess factors associated with having dysglycemia. RESULTS: Of 500 participants, 363 (72.6%) were female. Median age was 42.5 years [interquartile range (IQR): 36.5-49.5]. Nineteen patients (3.8%) had diabetes and 170 patients (34%) were classified as having prediabetes. One hundred nine (22%) had a CD4+ count <200 cells/mm(3) , and 464 (93%) had received >28 days of ART at time of screening. Median abdominal circumference for women was 79.5 cm (IQR: 75.5-85.3) and for men, 86.5 cm (IQR: 81.7-90.5). Adjusting for age, sex, socio-economic status, CD4 cell count, being on cART >28 days, body mass index, hypertension, history of hypertension, abdominal circumference and duration of HIV infection, larger abdominal circumference was associated with higher prevalence of prediabetes or diabetes (adjusted odds ratio = 1.07, 95% confidence interval: 1.03-1.11), while being on cART (adjusted odds ratio = 0.46, confidence interval: 0.22-0.99) was associated with lower prevalence. CONCLUSIONS: There was a high prevalence of dysglycemia among Cameroonian HIV-infected adults. Larger abdominal circumference was associated with higher prevalence, while cART was associated with lower prevalence. Copyright © 2016 John Wiley & Sons, Ltd.


Assuntos
Diabetes Mellitus/epidemiologia , Infecções por HIV/virologia , Estado Pré-Diabético/epidemiologia , Adulto , Biomarcadores/análise , Camarões/epidemiologia , Estudos Transversais , Diabetes Mellitus/etiologia , Feminino , Hemoglobinas Glicadas/análise , Infecções por HIV/complicações , HIV-1/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Estado Pré-Diabético/etiologia , Prevalência , Prognóstico
5.
Infect Dis Obstet Gynecol ; 2016: 4359401, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27578957

RESUMO

Objectives. We estimated seroprevalence and correlates of selected infections in pregnant women and blood donors in a resource-limited setting. Methods. We performed a cross-sectional analysis of laboratory seroprevalence data from pregnant women and voluntary blood donors from facilities in Cameroon in 2014. Rapid tests were performed to detect hepatitis B surface antigen, syphilis treponemal antibodies, and HIV-1/2 antibodies. Blood donations were also tested for hepatitis C and malaria. Results. The seroprevalence rates and ranges among 7069 pregnant women were hepatitis B 4.4% (1.1-9.6%), HIV 6% (3.0-10.2%), and syphilis 1.7% (1.3-3.8%) with significant variability among the sites. Correlates of infection in pregnancy in adjusted regression models included urban residence for hepatitis B (aOR 2.9, CI 1.6-5.4) and HIV (aOR 3.5, CI 1.9-6.7). Blood donor seroprevalence rates and ranges were hepatitis B 6.8% (5.0-8.8%), HIV 2.2% (1.4-2.8%), syphilis 4% (3.3-4.5%), malaria 1.9%, and hepatitis C 1.7% (0.5-2.5%). Conclusions. Hepatitis B, HIV, and syphilis infections are common among pregnant women and blood donors in Cameroon with higher rates in urban areas. Future interventions to reduce vertical transmission should include universal screening for these infections early in pregnancy and provision of effective prevention tools including the birth dose of univalent hepatitis B vaccine.


Assuntos
Doadores de Sangue/estatística & dados numéricos , Infecções por HIV/epidemiologia , Hepatite B/epidemiologia , Complicações Infecciosas na Gravidez/epidemiologia , Sífilis/epidemiologia , Adolescente , Adulto , Camarões/epidemiologia , Estudos Transversais , Feminino , Infecções por HIV/imunologia , Hepatite B/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Complicações Infecciosas na Gravidez/imunologia , Estudos Soroepidemiológicos , Sífilis/imunologia , Adulto Jovem
6.
AIDS Care ; 26(11): 1440-5, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24865769

RESUMO

The purpose of this study is to evaluate the association between utilization of HIV testing and condom use amongst Cameroonian youths/adolescents who are not known to be HIV-infected. Worldwide, HIV is spreading most quickly amongst youths/adolescents. Between 44% and 82% of sexually active youths in Cameroon report inconsistent condom use. Data regarding utilization of HIV testing and condom use are lacking. A cross-sectional survey was administered to 431 youths ages 12-26 years in Cameroon from September 2011 to December 2011. Data on sociodemographics, sexual risk behaviors, self-reported HIV status, and condom use were collected. We compared rates of inconsistent condom use between those with known HIV negative status who utilized testing (HIV-N) and those with unknown status due to unutilized testing (HIV-U). Inconsistent condom use was defined as responding "never," "sometimes," or "usually," while consistent condom use was defined as responding "always" to questions regarding frequency of condom use. Generalized estimating equations were applied to assess the association between HIV testing and inconsistent condom use, adjusting for other confounders. Of 414 eligible respondents, 205 were HIV-U and 209 were HIV-N. HIV-U subjects were younger (mean age = 16.4 vs. 17.9, p < 0.001) and more likely to report living in an urban area (p = 0.002) than HIV-N subjects. Seventy-two percent (137/191) of sexually active youths reported inconsistent condom use. After adjusting for potential confounders, HIV-U status (odds ratio [OR] = 3.97, 95% confidence interval [CI] = 1.68-6.01) was associated with inconsistent condom use. Similarly, female gender (OR = 3.2, 95% CI = 1.29-7.89) was associated with inconsistent condom use, while older age at sexual debut was associated with a decreased risk for inconsistent condom use (OR = 0.67, 95% CI = 0.56-0.81). Cameroonian adolescents report high rates of inconsistent condom use which we found to be associated with self-reported unknown HIV status due to unutilized HIV testing. Successful HIV prevention programs among African youths/adolescents may benefit from expanded HIV testing programs.


Assuntos
Comportamento do Adolescente , Preservativos/estatística & dados numéricos , Infecções por HIV/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Sexo Seguro/estatística & dados numéricos , Adolescente , Adulto , Camarões/epidemiologia , Criança , Estudos Transversais , Feminino , Infecções por HIV/prevenção & controle , Soropositividade para HIV , Humanos , Masculino , Razão de Chances , Assunção de Riscos , Parceiros Sexuais , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
7.
Open Forum Infect Dis ; 11(5): ofae274, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38807754

RESUMO

Background: This trial tested the effectiveness of a novel regimen to prevent malaria and sexually transmitted infections (STIs) among pregnant women with HIV in Cameroon. Our hypothesis was that the addition of azithromycin (AZ) to standard daily trimethoprim-sulfamethoxazole (TMP-SMX) prophylaxis would reduce malaria and STI infection rates at delivery. Methods: Pregnant women with HIV at gestational age <28 weeks were randomized to adjunctive monthly oral AZ 1 g daily or placebo for 3 days and both groups received daily standard oral TMP-SMX through delivery. Primary outcomes were (1) positive peripheral malaria infection by microscopy or polymerase chain reaction and (2) composite bacterial genital STI (Chlamydia trachomatis, Neisseria gonorrhoeae, or syphilis) at delivery. Relative risk and 95% confidence intervals were estimated using 2 × 2 tables with significance as P < .05. Results: Pregnant women with HIV (n = 308) were enrolled between March 2018 and August 2020: 155 women were randomized to TMP-SMX-AZ and 153 women to TMP-SMX-placebo. Groups were similar at baseline and loss to follow up was 3.2%. There was no difference in the proportion with malaria (16.3% in TMP-SMX-AZ vs 13.2% in TMP-SMX; relative risk, 1.24 [95% confidence interval, .71-2.16]) or STI at delivery (4.2% in TMP-SMX-AZ vs 5.8% in TMP-SMX; relative risk, 0.72 [95% confidence interval, .26-2.03]). Adverse birth outcomes were not significantly different, albeit lower in the TMP-SMX-AZ arm (preterm delivery 6.7% vs 10.7% [P = .3]; low birthweight 3.4% vs 5.4% [P = .6]). Conclusions: The addition of monthly azithromycin to daily TMP-SMX prophylaxis in pregnant women living with HIV in Cameroon did not reduce the risk of malaria or bacterial STI at delivery.

8.
Eur J Obstet Gynecol Reprod Biol ; 293: 9-14, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38096705

RESUMO

OBJECTIVE: To develop a predictive model for peripartum infection among high risk laboring patients in Cameroon, Africa. STUDY DESIGN: We conducted a secondary analysis of the Cameroon Antibiotic Prophylaxis Trial (NCT03248297), a multicenter 3-arm double-blind randomized controlled trial of oral azithromycin ± amoxicillin among term pregnancies with prolonged labor or rupture of membranes in Cameroon 1/2018-5/2020. Patients with chorioamnionitis prior to randomization, study drug contraindications, or planned cesarean were excluded. The outcome of interest was a composite of maternal peripartum infection (chorioamnionitis, endometritis, sepsis by World Health Organization criteria, wound infection/abscess) diagnosed up to 6 weeks postpartum. Potential predictors were compared between patients with and without the composite outcome, and evaluated at a 0.05 alpha level. Statistically significant exposures were analyzed using multivariable regression (to generate adjusted odds ratios and 95 % confidence intervals) with backwards selection to generate a parsimonious model. Receiver operating characteristic curves with associated area under the curve assessed the model's predictive ability. A nomogram based on the final best fit multivariable model was constructed. RESULTS: Of 756 patients in the parent trial, 652 were analyzed: 45 (7 %) had peripartum infection. Those with infection were more likely to be nulliparous, lower education level, higher gestational age, receive antibiotics per hospital protocols, and undergo cesarean. In our best-fit multivariable model, none/primary education (vs university), cesarean birth, and antibiotic receipt per physician discretion (vs for cesarean prophylaxis) were significantly associated with increased infection risk. This model was moderately predictive (AUC = 0.75, 95 % CI 0.67-0.82). When using this 3 factor model, for a patient with a cesarean birth, receipt of antibiotics per physician discretion, and university education, the probability of peripartum infection was 35 % (95 % CI 0.11-0.73). CONCLUSIONS: While several variables such as parity are associated with infectious morbidity within 6 weeks among high risk laboring patients in Cameroon, only education level, antibiotic indication, and cesarean birth were independently associated, and a model including these 3 factors was moderately predictive. Validation of our findings in a larger population is warranted.


Assuntos
Corioamnionite , Trabalho de Parto , Humanos , Gravidez , Feminino , Corioamnionite/epidemiologia , Camarões/epidemiologia , Período Periparto , Antibacterianos/uso terapêutico
9.
PLoS Med ; 10(5): e1001424, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23667341

RESUMO

BACKGROUND: Population-based evaluations of programs for prevention of mother-to-child HIV transmission (PMTCT) are scarce. We measured PMTCT service coverage, regimen use, and HIV-free survival among children ≤24 mo of age in Cameroon, Côte D'Ivoire, South Africa, and Zambia. METHODS AND FINDINGS: We randomly sampled households in 26 communities and offered participation if a child had been born to a woman living there during the prior 24 mo. We tested consenting mothers with rapid HIV antibody tests and tested the children of seropositive mothers with HIV DNA PCR or rapid antibody tests. Our primary outcome was 24-mo HIV-free survival, estimated with survival analysis. In an individual-level analysis, we evaluated the effectiveness of various PMTCT regimens. In a community-level analysis, we evaluated the relationship between HIV-free survival and community PMTCT coverage (the proportion of HIV-exposed infants in each community that received any PMTCT intervention during gestation or breastfeeding). We also compared our community coverage results to those of a contemporaneous study conducted in the facilities serving each sampled community. Of 7,985 surveyed children under 2 y of age, 1,014 (12.7%) were HIV-exposed. Of these, 110 (10.9%) were HIV-infected, 851 (83.9%) were HIV-uninfected, and 53 (5.2%) were dead. HIV-free survival at 24 mo of age among all HIV-exposed children was 79.7% (95% CI: 76.4, 82.6) overall, with the following country-level estimates: Cameroon (72.6%; 95% CI: 62.3, 80.5), South Africa (77.7%; 95% CI: 72.5, 82.1), Zambia (83.1%; 95% CI: 78.4, 86.8), and Côte D'Ivoire (84.4%; 95% CI: 70.0, 92.2). In adjusted analyses, the risk of death or HIV infection was non-significantly lower in children whose mothers received a more complex regimen of either two or three antiretroviral drugs compared to those receiving no prophylaxis (adjusted hazard ratio: 0.60; 95% CI: 0.34, 1.06). Risk of death was not different for children whose mothers received a more complex regimen compared to those given single-dose nevirapine (adjusted hazard ratio: 0.88; 95% CI: 0.45, 1.72). Community PMTCT coverage was highest in Cameroon, where 75 of 114 HIV-exposed infants met criteria for coverage (66%; 95% CI: 56, 74), followed by Zambia (219 of 444, 49%; 95% CI: 45, 54), then South Africa (152 of 365, 42%; 95% CI: 37, 47), and then Côte D'Ivoire (3 of 53, 5.7%; 95% CI: 1.2, 16). In a cluster-level analysis, community PMTCT coverage was highly correlated with facility PMTCT coverage (Pearson's r = 0.85), and moderately correlated with 24-mo HIV-free survival (Pearson's r = 0.29). In 14 of 16 instances where both the facility and community samples were large enough for comparison, the facility-based coverage measure exceeded that observed in the community. CONCLUSIONS: HIV-free survival can be estimated with community surveys and should be incorporated into ongoing country monitoring. Facility-based coverage measures correlate with those derived from community sampling, but may overestimate population coverage. The more complex regimens recommended by the World Health Organization seem to have measurable public health benefit at the population level, but power was limited and additional field validation is needed.


Assuntos
Serviços de Saúde da Criança , Países em Desenvolvimento , Infecções por HIV/prevenção & controle , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Adolescente , Adulto , África/epidemiologia , Fatores Etários , Biomarcadores/sangue , Criança , Serviços de Saúde da Criança/estatística & dados numéricos , DNA Viral/sangue , Países em Desenvolvimento/estatística & dados numéricos , Intervalo Livre de Doença , Características da Família , Feminino , Saúde Global , HIV/genética , Infecções por HIV/diagnóstico , Infecções por HIV/mortalidade , Infecções por HIV/transmissão , Pesquisas sobre Atenção à Saúde , Acessibilidade aos Serviços de Saúde , Pesquisa sobre Serviços de Saúde , Humanos , Lactente , Mortalidade Infantil , Recém-Nascido , Serviços de Saúde Materna , Análise Multivariada , Reação em Cadeia da Polimerase , Valor Preditivo dos Testes , Gravidez , Prognóstico , Avaliação de Programas e Projetos de Saúde , Modelos de Riscos Proporcionais , Indicadores de Qualidade em Assistência à Saúde , Projetos de Pesquisa , Fatores de Risco , Fatores Socioeconômicos , Inquéritos e Questionários , Fatores de Tempo , Adulto Jovem
10.
Afr J Disabil ; 11: 1025, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36567923

RESUMO

Background: Child abuse is a serious public health issue in low- and middle-income countries, and children with disabilities are at greater risk of abuse. Despite this heightened risk, the abuse of children with disabilities often goes undetected and under-reported, leading to the continuity of such abuse by their abusers. Objectives: This study was aimed at identifying the reasons for non-disclosure of abuse and possible mitigating strategies to curb this dilemma in children and young adults with disabilities (CWD). Methods: A population-based record-linkage qualitative study was conducted among CWD (both at home and in institutions) in the Northwest Region of Cameroon. Twelve key informant interviews and eight focus group discussions (FGDs) were conducted among key staff from child protection offices for child abuse, parents and teachers in schools. Fifty in-depth interviews were also conducted among children with disabilities. Reasons for nondisclosure and proposed mitigating approaches from audio tapes were transcribed verbatim, thematic analysis performed and findings reported. Results: A lack of knowledge on where to disclose, fear of stigma, long and expensive procedures, a lack of confidence in the justice system, threats from abusers, protection of family unity and friendship ties were linked with nondisclosures. The most common mitigating strategies postulated were sensitisation, capacity building on parenting and the creation of child protection committees. Conclusion: From this study, nondisclosure of abuse is common in CWD, and thus there is a need for urgent attention to curb the situation for safer and more child-friendly environments through sensitisation, parental support and putting in place strategic child protection committees. Contribution: This article is based on the experience of all authors with interest in the field of disability. This article contributes to the pull of knowledge by providing context specific reasons for non-disclosure of abuse as well as mitigation strategies.

11.
Int J Womens Health ; 14: 677-686, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35572348

RESUMO

Purpose: The purpose of this NIH-funded protocol is to adapt (Aim 1) and pilot test (Aim 2) an mHealth intervention to improve maternal and child health in Cameroon. We will adapt the 24/7 University of Alabama at Birmingham Medical Information Service via Telephone (MIST) provider support system to mMIST (mobile MIST) for peripheral providers who provide healthcare to pregnant and postpartum women and newborns in Cameroon. Methods: In Aim 1, we apply qualitative and participatory methods (in-depth interviews and focus groups with key stakeholders) to inform the adaptation of mMIST for use in Cameroon. We use the sequential phases of the ADAPT-ITT framework to iteratively adapt mMIST incorporating qualitative findings and tailoring for local contexts. In Aim 2, we test the adapted intervention for feasibility and acceptability in Ndop, Cameroon. Results: This study is ongoing at the time that this protocol is published. Conclusion: The adaptation, refinement, and pilot testing of mMIST will be used to inform a larger-scale stepped wedged cluster randomized controlled effectiveness trial. If successful, this mHealth intervention could be a powerful tool enabling providers in low-resource settings to deliver improved pregnancy care, thereby reducing maternal and fetal deaths.

12.
PLoS One ; 17(9): e0274541, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36099295

RESUMO

BACKGROUND: The public health response to the global COVID-19 pandemic has varied widely by region. In Africa, uptake of effective COVID-19 vaccines has been limited by accessibility and vaccine hesitancy. The aim of this study was to compare perceptions of COVID-19 infection and vaccination between pregnant women and non-pregnant adults in four regions of Cameroon, located in Central Africa. METHODS: A cross-sectional survey study was conducted at urban and suburban hospital facilities in Cameroon. Participants were randomly selected from a convenience sample of adult pregnant and non-pregnant adults in outpatient clinical settings between June 1st and July 14th, 2021. A confidential survey was administered in person by trained research nurses after obtaining written informed consent. Participants were asked about self-reported sociodemographics, medical comorbidities, perceptions of COVID-19 infection, and vaccination. Descriptive statistics were used for survey responses and univariate and multivariable logistic regression models were created to explore factors associated with COVID-19 vaccine acceptability. RESULTS: Fewer than one-third of participants were interested in receiving the COVID-19 vaccine (31%, 257/835) and rates did not differ by pregnancy status. Overall, 43% of participants doubted vaccine efficacy, and 85% stated that the vaccine available in Africa was less effective than vaccine available in Europe. Factors independently associated with vaccine acceptability included having children (aOR = 1.5; p = 0.04) and higher education (aOR = 1.6 for secondary school vs primary/none; p = 0.03). Perceived risks of vaccination ranged from death (33%) to fetal harm (31%) to genetic changes (1%). Health care professionals were cited as the most trusted source for health information (82%, n = 681). CONCLUSION: COVID-19 vaccine hesitancy and misinformation in Cameroon was highly prevalent among pregnant and non-pregnant adults in 2021 while vaccine was available but not recommended for use in pregnancy. Based on study findings, consistent public health messaging from medical professionals about vaccine safety and efficacy and local production of vaccine are likely to improve acceptability.


Assuntos
COVID-19 , Vacinas contra Influenza , Adulto , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Camarões/epidemiologia , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Pandemias , Gravidez , Autorrelato
13.
Nephrol Dial Transplant ; 26(9): 3051-3, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21719713

RESUMO

BACKGROUND: Proteinuria during pregnancy has been associated with increased pregnancy complications. Furthermore, even low-grade proteinuria has been associated with increased mortality in the general population and in non-pregnant HIV-infected women. METHODS: Urine dipstick protein was measured prospectively on HIV-infected and trace protein or more and quantified by urine protein:creatinine measurement (P:C). Logistic regression modeling was used to identify factors associated with proteinuria. RESULTS: About 199 human immunodeficiency virus (HIV)-infected and 190 HIV-uninfected normotensive pregnant women were evaluated. The median age was 27 years in both groups and 37% presented in the third trimester. Among HIV-infected women, median CD4 cell count was 417 cells/mm(3); 27% were on combination antiretroviral therapy (cART). Proteinuria was present in 39.2% of HIV-infected and 20.9% of uninfected women (P < 0.001). HIV infection was independently associated with proteinuria [adjusted odds ratio (OR) = 2.45; confidence interval (CI) = 1.56-3.85]. Among HIV-infected pregnant women, cART was protective (adjusted OR = 0.39; CI = 0.19-0.82). Results were qualitatively similar when urine P:C was evaluated as a continuous outcome variable. CONCLUSIONS: The prevalence of low-grade proteinuria in both HIV-infected and -uninfected Cameroonian pregnant women is high. HIV-infected pregnant women are at increased risk for proteinuria, and cART appears to exert a protective effect. Further studies are needed to elucidate the causes of increased proteinuria in African pregnant women, both HIV-infected and -uninfected.


Assuntos
Infecções por HIV/transmissão , HIV-1/patogenicidade , Complicações Infecciosas na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/etiologia , Proteinúria/epidemiologia , Proteinúria/etiologia , Adulto , Terapia Antirretroviral de Alta Atividade , Camarões/epidemiologia , Estudos de Casos e Controles , Feminino , Seguimentos , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Humanos , Gravidez , Complicações Infecciosas na Gravidez/diagnóstico , Prevalência , Prognóstico , Proteinúria/diagnóstico , Taxa de Sobrevida , Adulto Jovem
14.
Obstet Gynecol ; 138(5): 703-713, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34619734

RESUMO

OBJECTIVE: To compare the effectiveness of single-dose azithromycin, with or without amoxicillin, with placebo to prevent peripartum infection in laboring women. METHODS: We conducted a multicenter, three-group, double-blind randomized controlled trial of women with viable term nonanomalous pregnancies with either prolonged labor of 18 hours or longer or rupture of membranes for 8 hours or longer in Cameroon. Women with chorioamnionitis before randomization, study drug contraindications, or planned cesarean births were excluded. Women were randomized to oral azithromycin 1 g-placebo (group 1), oral azithromycin 1 g-oral amoxicillin 2 g (group 2), or placebo-placebo (group 3). All groups received usual care, including antibiotics given at the health care professional's discretion. The primary outcome was a composite of maternal peripartum infection or death from any cause up to 6 weeks postpartum. Two primary comparisons (group 1 vs group 3 and group 2 vs group 3) were planned. We estimated that 241 women per group (planning for 750 total) would provide 80% power at two-sided α=0.05 (0.025 per comparison) to detect a 50% effect size assuming 20% baseline composite infection rate. RESULTS: From January 6, 2018, to May 15, 2020, 6,531 women were screened, and 756 (253 in group 1, 253 in group 2, and 250 in group 3) were randomized. Baseline characteristics (including body mass index, duration of rupture of membranes or labor, and parity) were balanced across groups, except for maternal age. More than 60% of women in each group received usual-care antibiotics: more than 90% penicillin and approximately 50% for prolonged rupture of membranes across all study groups. Composite outcome incidences were similar in antibiotic groups 1 (6%) and 2 (7%) compared with placebo group 3 (10%) (RR 0.6, 95% CI 0.3-1.2; 0.7, 95% CI 0.4-1.3, respectively). Chorioamnionitis and wound infection were significantly lower in group 2 (3.2% vs 0.4% and 4% vs 0.8% respectively, both P=.02) compared with group 3. There were no differences in other maternal or neonatal outcomes including neonatal infection. CONCLUSION: A single dose of oral azithromycin with or without amoxicillin for prolonged labor or rupture of membranes at term did not reduce maternal peripartum or neonatal infection. Observed lower than expected infection rates and frequent usual-care antibiotic use may have contributed to these findings. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT03248297. FUNDING SOURCE: Merck for Mothers Investigator Studies Program grant.


Assuntos
Amoxicilina/administração & dosagem , Antibioticoprofilaxia/métodos , Azitromicina/administração & dosagem , Infecções Bacterianas/prevenção & controle , Período Periparto , Complicações Infecciosas na Gravidez/prevenção & controle , Abscesso/prevenção & controle , Administração Oral , Adulto , Antibacterianos/administração & dosagem , Infecções Bacterianas/mortalidade , Camarões , Cesárea/estatística & dados numéricos , Corioamnionite/prevenção & controle , Método Duplo-Cego , Endometrite/prevenção & controle , Feminino , Humanos , Recém-Nascido , Controle de Infecções/métodos , Trabalho de Parto , Gravidez , Complicações Infecciosas na Gravidez/mortalidade , Sepse/prevenção & controle , Resultado do Tratamento , Infecção dos Ferimentos/prevenção & controle
15.
BMC Public Health ; 10: 129, 2010 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-20226022

RESUMO

BACKGROUND: Tuberculosis (TB) and human immunodeficiency virus (HIV) co-infection is a major source of morbidity and mortality globally. The World Health Organization (WHO) has recommended that HIV counselling and testing be offered routinely to TB patients in order to increase access to HIV care packages. We assessed the uptake of provider-initiated testing and counselling (PITC), antiretroviral (ART) and co-trimoxazole preventive therapies (CPT) among TB patients in the Northwest Region, Cameroon. METHODS: A retrospective cohort study using TB registers in 4 TB/HIV treatment centres (1 public and 3 faith-based) for patients diagnosed with TB between January 2006 and December 2007 to identify predictors of the outcomes; HIV testing/serostatus, ART and CPT enrollment and factors that influenced their enrollment between public and faith-based hospitals. RESULTS: A total of 2270 TB patients were registered and offered pre-HIV test counselling; 2150 (94.7%) accepted the offer of a test. The rate of acceptance was significantly higher among patients in the public hospital compared to those in the faith-based hospitals (crude OR 1.97; 95% CI 1.33 - 2.92) and (adjusted OR 1.92; 95% CI 1.24 - 2.97). HIV prevalence was 68.5% (1473/2150). Independent predictors of HIV-seropositivity emerged as: females, age groups 15-29, 30-44 and 45-59 years, rural residence, previously treated TB and smear-negative pulmonary TB. ART uptake was 50.3% (614/1220) with 17.2% (253/1473) of missing records. Independent predictors of ART uptake were: previously treated TB and extra pulmonary TB. Finally, CPT uptake was 47.0% (524/1114) with 24% (590/1114) of missing records. Independent predictors of CPT uptake were: faith-based hospitals and female sex. CONCLUSION: PITC services are apparently well integrated into the TB programme as demonstrated by the high testing rate. The main challenges include improving access to ART and CPT among TB patients and proper reporting and monitoring of programme activities.


Assuntos
Antirretrovirais/uso terapêutico , Infecções por HIV/prevenção & controle , Acessibilidade aos Serviços de Saúde/normas , Combinação Trimetoprima e Sulfametoxazol/uso terapêutico , Tuberculose/complicações , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Camarões/epidemiologia , Criança , Pré-Escolar , Estudos de Coortes , Quimioterapia Combinada , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Soroprevalência de HIV , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Tuberculose/tratamento farmacológico
16.
JAMA ; 304(3): 293-302, 2010 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-20639563

RESUMO

CONTEXT: Few studies have objectively evaluated the coverage of services to prevent transmission of human immunodeficiency virus (HIV) from mother to child. OBJECTIVE: To measure the coverage of services to prevent mother-to-child HIV transmission in 4 African countries. DESIGN, SETTING, AND PATIENTS: Cross-sectional surveillance study of mother-infant pairs using umbilical cord blood samples collected between June 10, 2007, and October 30, 2008, from 43 randomly selected facilities (grouped as 25 service clusters) providing delivery services in Cameroon, Côte d'Ivoire, South Africa, and Zambia. All sites used at least single-dose nevirapine to prevent mother-to-child HIV transmission and some sites used additional prophylaxis drugs. MAIN OUTCOME MEASURE: Population nevirapine coverage, defined as the proportion of HIV-exposed infants in the sample with both maternal nevirapine ingestion (confirmed by cord blood chromatography) and infant nevirapine ingestion (confirmed by direct observation). RESULTS: A total of 27,893 cord blood specimens were tested, of which 3324 were HIV seropositive (12%). Complete data for cord blood nevirapine results were available on 3196 HIV-seropositive mother-infant pairs. Nevirapine coverage varied significantly by site (range: 0%-82%). Adjusted for country, the overall coverage estimate was 51% (95% confidence interval [CI], 49%-53%). In multivariable analysis, failed coverage of nevirapine-based services was significantly associated with maternal age younger than 20 years (adjusted odds ratio [AOR], 1.44; 95% CI, 1.18-1.76) and maternal age between 20 and 25 years (AOR, 1.28; 95% CI, 1.07-1.54) vs maternal age of older than 30 years; 1 or fewer antenatal care visits (AOR, 2.91; 95% CI, 2.40-3.54), 2 or 3 antenatal care visits (AOR, 1.93; 95% CI, 1.60-2.33), and 4 or 5 antenatal care visits (AOR, 1.56; 95% CI, 1.34-1.80) vs 6 or more antenatal care visits; vaginal delivery (AOR, 1.22; 95% CI, 1.03-1.44) vs cesarean delivery; and infant birth weight of less than 2500 g (AOR, 1.34; 95% CI, 1.11-1.62) vs birth weight of 3500 g or greater. CONCLUSION: In this random sampling of sites with services to prevent mother-to-child HIV transmission, only 51% of HIV-exposed infants received the minimal regimen of single-dose nevirapine.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Nevirapina/uso terapêutico , Complicações Infecciosas na Gravidez/prevenção & controle , Adulto , África , Estudos Transversais , Feminino , Sangue Fetal/química , Humanos , Recém-Nascido , Vigilância da População , Padrões de Prática Médica/estatística & dados numéricos , Gravidez , Adulto Jovem
17.
J Int AIDS Soc ; 22 Suppl 3: e25310, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31321902

RESUMO

INTRODUCTION: In 2007, the Cameroon Baptist Convention Health Services (CBCHS) initiated an assisted partner notification services (aPNS) public health programme to increase HIV case identification and reduce HIV incidence in the most affected regions of Cameroon. We describe large-scale implementation of aPNS and overall programmatic achievements in a resource-limited setting through 2015. METHODS: CBCHS trained health advisors (HAs) from 16 CBCHS facilities and 22 non-CBCHS facilities to integrate aPNS into their existing jobs in five of the ten Cameroon regions. HAs recorded basic demographic, clinical and risk factor information from consenting index persons (IPs) and similar information about their sexual partners'/contact persons (CPs) on interview records and aPNS registers. These data were entered into an Epi-Info database. HAs provided pre-test counselling to CPs and offered them HIV testing in their home or other location. HAs educated IPs and CPs on HIV prevention and risk reduction, and referred IPs and HIV positive CPs to HIV care and treatment centres. Starting in 2014, HAs re-interviewed IPs 30 days after their initial aPNS interview to ascertain instances of social harms following partner notification. Continuous predictor and outcome variables were summarized using median and interquartile range, while categorical variables were summarized using percentages from 2007 to 2015. RESULTS: A total of 18,730 IPs (71% women) received aPNS over nine years. IPs identified 21,057 CPs (67% men) (mean CP/IP 1.12), of whom 12,867 (61.1%) were notified of their exposure to HIV. A total of 9202 (71.5% of notified CPs) tested for HIV, 4764 (51.8%) of whom tested HIV positive (number of IPs needed to interview = 3.9); 3112 (65.3%) HIV-positive partners were referred to HIV care and treatment centres. Of the 976 IPs receiving aPNS in 2014 to 2015, for whom follow-up data were available, 11 (1.1%) reported physical intimate partner violence from CPs. Thus, 44.3% of 1224 CPs were notified through provider referral. Of the 784 CPs who tested for HIV, 157 were newly diagnosed and the overall HIV prevalence was 41.6% (326/784). CONCLUSIONS: aPNS is feasible, can be brought to scale, yields a high level of case identification, and is infrequently associated with social harms and intimate partner violence.


Assuntos
Notificação de Doenças , Infecções por HIV/diagnóstico , Parceiros Sexuais , Adulto , Camarões , Aconselhamento , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Humanos , Violência por Parceiro Íntimo , Masculino , Prevalência , Fatores de Risco , Adulto Jovem
18.
J Int AIDS Soc ; 22 Suppl 3: e25307, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31321889

RESUMO

INTRODUCTION: Healthcare worker training is essential to successful implementation of assisted partner services (aPS), which aims to improve HIV testing and linkage-to-care outcomes for previously unidentified HIV-positive individuals. Cameroon, Kenya and Mozambique are three African countries that have implemented aPS programmes and are working to bring those programmes to scale. In this paper, we present and compare different aPS training strategies implemented by these three countries, and discuss facilitators and barriers associated with implementation of aPS training in sub-Saharan Africa. DISCUSSION: aPS training programmes in Cameroon, Kenya and Mozambique share the following components: the development of comprehensive and interactive training curricula, recruitment of qualified trainees and trainers with intimate knowledge of the community served, continuous training, and rigorous monitoring and evaluation activities. Cameroon and Kenya were able to engage various stakeholders early on, establishing multilateral coalitions that facilitated attainment of long-term buy-in from the local governments. Ministries of Health and various implementing partners are often included in strategic planning and delivery of training curricula to ensure sustainability of the training programmes. Kenya and Mozambique have integrated aPS training into the national HTS guidelines, which are being rolled out nationwide by the Ministries of Health and implementing partners. Continual revision of training curricula to reflect the country context, as well as ongoing monitoring and evaluation, have also been identified as key facilitators to sustain aPS training programmes. Some of the barriers to scale-up and sustainability of aPS training include limited funding and resources for training and scale-up and shortage of aPS providers to facilitate on-the-job mentorship. CONCLUSIONS: These three programmes demonstrate that aPS training can be implemented and scaled up in sub-Saharan Africa. As countries plan for initial implementation or national scale-up of aPS services, they will need to establish government buy-in, expand funding sources, address the shortage of staff and resources to provide aPS and on-the-job mentorship, and continuously collect data to evaluate and improve aPS training plans. Development of national standards for aPS training, empowered healthcare providers, increased government commitment, and sustained funding for aPS services and training will be crucial for successful aPS implementation.


Assuntos
Infecções por HIV/diagnóstico , Pessoal de Saúde/educação , Parceiros Sexuais , Adulto , Idoso , Camarões , Feminino , Recursos em Saúde , Humanos , Quênia , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Moçambique
19.
J Virol Methods ; 144(1-2): 109-14, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17553573

RESUMO

Serodiagnosis of HIV infection in infants born to HIV-infected mothers is problematic due to the prolonged presence of maternal antibodies in infants. Nucleic acid-based amplification assays have been used to overcome this problem. Here a simplified, one-tube, real-time, duplex reverse transcription PCR (RT PCR) assay is shown to detect HIV-1 total nucleic acid (TNA) isolated from dried blood spots. The detection of TNA, as opposed to DNA alone, increases the HIV target molecules and thus makes the assay more robust. This method was used to detect HIV from the DBS collected from HIV-1 exposed infants and young children in Uganda (n=128) and Cameroon (n=315). The gold-standards used were a plasma viral assay in Uganda and Amplicor DNA assay in Cameroon. The concordance of this real-time assay and the gold standards was 99.2% (127/128) and 99.4% (313/315) with the Ugandan and Cameroonian samples, respectively. This simple and cost-effective assay is potentially useful for the diagnosis of pediatric HIV infection and for evaluating programs to reduce mother-to-child transmission of HIV-1.


Assuntos
DNA Viral/isolamento & purificação , Infecções por HIV/diagnóstico , HIV-1/isolamento & purificação , Reação em Cadeia da Polimerase Via Transcriptase Reversa/métodos , Camarões , Criança , DNA Viral/sangue , Feminino , Infecções por HIV/virologia , Soropositividade para HIV , Humanos , Lactente , Sensibilidade e Especificidade , Uganda
20.
J Acquir Immune Defic Syndr ; 75 Suppl 1: S43-S50, 2017 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-28398996

RESUMO

The acceleration of prevention of mother-to-child transmission (PMTCT) activities, coupled with the rollout of 2010 World Health Organization (WHO) guidelines, led to important discussions and innovations at global and country levels. One paradigm-shifting innovation was Option B+ in Malawi. It was later included in WHO guidelines and eventually adopted by all 22 Global Plan priority countries. This article presents Malawi's experience with designing and implementing Option B+ and provides complementary narratives from Cameroon and Tanzania. Malawi's HIV program started in 2002, but by 2009, the PMTCT program was lagging far behind the antiretroviral therapy (ART) program because of numerous health system challenges. When WHO recommended Option A and Option B for PMTCT in 2010, it was clear that Malawi's HIV program would not be able to successfully implement either option without increasing existing barriers to PMTCT services and potentially decreasing women's access to care. Subsequent stakeholder discussions led to the development of Option B+. Operationalizing Option B+ required several critical considerations, including the complete integration of ART and PMTCT programs, systematic reduction of barriers to facilitate doubling the number of ART sites in less than a year, building consensus with stakeholders, and securing additional resources for the new program. During the planning and implementation process, several lessons were learned which are considerations for countries transitioning to "treat-all": Comprehensive change requires effective government leadership and coordination; national clinical guidelines must accommodate health system limitations; ART services and commodities should be decentralized within facilities; the general public should be well informed about major changes in the national HIV program; and patients should be educated on clinic processes to improve program monitoring.


Assuntos
Antirretrovirais/administração & dosagem , Controle de Doenças Transmissíveis/métodos , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Camarões , Feminino , Infecções por HIV/prevenção & controle , Humanos , Lactente , Recém-Nascido , Malaui , Gravidez , Tanzânia
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