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1.
Open Forum Infect Dis ; 11(5): ofae274, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38807754

RESUMEN

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.

2.
AIDS Care ; 36(4): 517-527, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37921364

RESUMEN

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.


Asunto(s)
Infecciones por VIH , Profilaxis Pre-Exposición , Trabajadores Sexuales , Medios de Comunicación Sociales , Humanos , Femenino , Infecciones por VIH/tratamiento farmacológico , Proyectos Piloto , Camerún , Estudios de Factibilidad , Profilaxis Pre-Exposición/métodos
3.
Eur J Obstet Gynecol Reprod Biol ; 293: 9-14, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38096705

RESUMEN

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.


Asunto(s)
Corioamnionitis , Trabajo de Parto , Humanos , Embarazo , Femenino , Corioamnionitis/epidemiología , Camerún/epidemiología , Periodo Periparto , Antibacterianos/uso terapéutico
4.
Afr J Disabil ; 11: 1025, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36567923

RESUMEN

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.

5.
PLoS One ; 17(9): e0274541, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36099295

RESUMEN

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.


Asunto(s)
COVID-19 , Vacunas contra la Influenza , Adulto , COVID-19/epidemiología , COVID-19/prevención & control , Vacunas contra la COVID-19 , Camerún/epidemiología , Estudios Transversales , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Pandemias , Embarazo , Autoinforme
6.
Int J Womens Health ; 14: 677-686, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35572348

RESUMEN

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.

7.
Obstet Gynecol ; 138(5): 703-713, 2021 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-34619734

RESUMEN

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.


Asunto(s)
Amoxicilina/administración & dosificación , Profilaxis Antibiótica/métodos , Azitromicina/administración & dosificación , Infecciones Bacterianas/prevención & control , Periodo Periparto , Complicaciones Infecciosas del Embarazo/prevención & control , Absceso/prevención & control , Administración Oral , Adulto , Antibacterianos/administración & dosificación , Infecciones Bacterianas/mortalidad , Camerún , Cesárea/estadística & datos numéricos , Corioamnionitis/prevención & control , Método Doble Ciego , Endometritis/prevención & control , Femenino , Humanos , Recién Nacido , Control de Infecciones/métodos , Trabajo de Parto , Embarazo , Complicaciones Infecciosas del Embarazo/mortalidad , Sepsis/prevención & control , Resultado del Tratamiento , Infección de Heridas/prevención & control
8.
Pediatr Blood Cancer ; 68(7): e28997, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33719184

RESUMEN

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.


Asunto(s)
Neoplasias , Camerún/epidemiología , Niño , Protocolos Clínicos , Humanos , Neoplasias/epidemiología , Neoplasias/terapia
9.
J Int AIDS Soc ; 22 Suppl 3: e25307, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31321889

RESUMEN

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.


Asunto(s)
Infecciones por VIH/diagnóstico , Personal de Salud/educación , Parejas Sexuales , Adulto , Anciano , Camerún , Femenino , Recursos en Salud , Humanos , Kenia , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Mozambique
10.
J Int AIDS Soc ; 22 Suppl 3: e25310, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-31321902

RESUMEN

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.


Asunto(s)
Notificación de Enfermedades , Infecciones por VIH/diagnóstico , Parejas Sexuales , Adulto , Camerún , Consejo , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Humanos , Violencia de Pareja , Masculino , Prevalencia , Factores de Riesgo , Adulto Joven
11.
Matern Child Health J ; 23(1): 30-38, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30022401

RESUMEN

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.


Asunto(s)
Conducta de Elección , Toma de Decisiones , Identidad de Género , Infecciones por VIH/psicología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Aceptación de la Atención de Salud/psicología , Adolescente , Adulto , Fármacos Anti-VIH/uso terapéutico , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Humanos , Madres/psicología
12.
J Acquir Immune Defic Syndr ; 75 Suppl 1: S43-S50, 2017 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-28398996

RESUMEN

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.


Asunto(s)
Antirretrovirales/administración & dosificación , Control de Enfermedades Transmisibles/métodos , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Camerún , Femenino , Infecciones por VIH/prevención & control , Humanos , Lactante , Recién Nacido , Malaui , Embarazo , Tanzanía
13.
AIDS Res Treat ; 2016: 2403936, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27872760

RESUMEN

Background. Many countries are working to reduce or eliminate mother-to-child transmission (MTCT) of HIV. Prevention efforts have been conceptualized as steps in a cascade but cascade completion rates during and after pregnancy are low. Methods. A cross-sectional survey was performed across 26 communities in Cameroon, Cote d'Ivoire, South Africa, and Zambia. Women who reported a pregnancy within two years were enrolled. Participant responses were used to construct the PMTCT cascade with all of the following steps required for completion: at least one antenatal visit, HIV testing performed, HIV testing result received, initiation of maternal prophylaxis, and initiation of infant prophylaxis. Factors associated with cascade completion were identified using multivariable logistic regression modeling. Results. Of 976 HIV-infected women, only 355 (36.4%) completed the PMTCT cascade. Although most women (69.2%) did not know their partner's HIV status; awareness of partner HIV status was associated with cascade completion (aOR 1.4, 95% CI 1.01-2.0). Completion was also associated with receiving an HIV diagnosis prior to pregnancy compared with HIV diagnosis during or after pregnancy (aOR 14.1, 95% CI 5.2-38.6). Conclusions. Pregnant women with HIV infection in Africa who were aware of their partner's HIV status and who were diagnosed with HIV before pregnancy were more likely to complete the PMTCT cascade.

14.
Infect Dis Obstet Gynecol ; 2016: 4359401, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27578957

RESUMEN

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.


Asunto(s)
Donantes de Sangre/estadística & datos numéricos , Infecciones por VIH/epidemiología , Hepatitis B/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Sífilis/epidemiología , Adolescente , Adulto , Camerún/epidemiología , Estudios Transversales , Femenino , Infecciones por VIH/inmunología , Hepatitis B/inmunología , Humanos , Masculino , Persona de Mediana Edad , Embarazo , Complicaciones Infecciosas del Embarazo/inmunología , Estudios Seroepidemiológicos , Sífilis/inmunología , Adulto Joven
15.
PLoS One ; 11(6): e0157319, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27280882

RESUMEN

BACKGROUND: In 2007, the Cameroon Baptist Convention Health Services (CBCHS) implemented a screen-and-treat cervical cancer prevention program using visual inspection with acetic acid enhanced by digital cervicography (VIA-DC). METHODS: We retrospectively analyzed 46,048 medical records of women who received care through the CBCHS Women's Health Program from 2007 through 2014 to determine the prevalence and predictors of positive VIA-DC, rates of same day treatment, and cohort prevalence of invasive cervical cancer (ICC). RESULTS: Of the 44,979 women who were screened for cervical cancer, 9.0% were VIA-DC-positive, 66.8% were VIA-DC-negative, 22.0% were VIA-DC-inadequate (normal ectocervix, but portions of the transformation zone were obscured), and 2.2% were VIA-DC-uncertain (cervical abnormalities confounding VIA-DC interpretation). Risk factors significantly associated with VIA-DC-positive screen were HIV-positivity, young age at sexual debut, higher lifetime number of sexual partners, low education status and higher gravidity. In 2014, 31.1% of women eligible for cryotherapy underwent same day treatment. Among the 32,788 women screened from 2007 through 2013, 201 cases of ICC were identified corresponding to a cohort prevalence of 613 per 100,000. CONCLUSIONS: High rate of VIA-DC-positive screens suggests a significant burden of potential cervical cancer cases and highlights the need for expansion of cervical cancer screening and prevention throughout the 10 regions of Cameroon. VIA-DC-inadequate rates were also high, especially in older women, and additional screening methods are needed to confirm whether these results are truly negative. In comparison to similar screening programs in sub-Saharan Africa there was low utilization of same day cryotherapy treatment. Further studies are required to characterize possible program specific barriers to treatment, for example cultural demands, health system challenges and cost of procedure. The prevalence of ICC among women who presented for screening was high and requires further investigation.


Asunto(s)
Tamizaje Masivo , Programas Nacionales de Salud , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/prevención & control , Adulto , Camerún/epidemiología , Femenino , Humanos , Prevalencia
16.
SAGE Open Med ; 4: 2050312115626432, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26835019

RESUMEN

OBJECTIVES: Young women are more likely to be infected with HIV globally, in sub-Saharan Africa, and in Cameroon. Despite its clear clinical and public health benefits, condom use among HIV-infected women continues to be low. The objective of this study was to describe the prevalence of inconsistent condom use among HIV-infected women in Cameroon and the factors associated with it. METHODS: We conducted a cross-sectional study of HIV-infected young women aged 17-26 years from three semi-urban HIV clinics in the Northwest Region of Cameroon. This study was a subgroup analysis of a previously reported study on inconsistent condom use in HIV-infected and -uninfected youth. Inconsistent condom use was defined as reporting "sometimes" or "never" to questions regarding frequency of condom use. Logistic regression modeling was used to determine factors associated with inconsistent condom use. RESULTS: A total of 84 participants were recruited and submitted completed questionnaires for analysis. Median age was 24 years (interquartile range = 22-25) and the median age at HIV diagnosis was 21 years (interquartile range = 20-23). Fifty percent of the participants reported no prior schooling or only primary school education. Overall, 61/84 (73%) reported inconsistent condom use. After adjusting for potential confounders, education to the secondary school level was protective against inconsistent condom use (odds ratio = 0.19; confidence interval: 0.04-0.95), and having ≥2 pregnancies was associated with inconsistent condom use (odds ratio = 7.52; confidence interval: 1.67-34.00). CONCLUSION: There is a high prevalence of inconsistent condom use among young HIV-infected women in Cameroon, which appears to be associated with lower levels of educational attainment and higher parity. Further larger studies assessing the factors associated with poor condom use in this population are warranted and may inform public health policy in resource-limited settings with high HIV prevalence.

17.
Diabetes Metab Res Rev ; 32(6): 544-9, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-26891253

RESUMEN

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.


Asunto(s)
Diabetes Mellitus/epidemiología , Infecciones por VIH/virología , Estado Prediabético/epidemiología , Adulto , Biomarcadores/análisis , Camerún/epidemiología , Estudios Transversales , Diabetes Mellitus/etiología , Femenino , Hemoglobina Glucada/análisis , Infecciones por VIH/complicaciones , VIH-1/fisiología , Humanos , Masculino , Persona de Mediana Edad , Estado Prediabético/etiología , Prevalencia , Pronóstico
18.
J Clin Endocrinol Metab ; 100(9): 3260-9, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26133363

RESUMEN

CONTEXT: Intrauterine HIV/antiretroviral (ARV) and postnatal ARVs are known to perturb energy metabolism and could have permanent effects on future metabolic health. Such maladaptive effects could be mediated by changes in mitochondrial function and intermediary metabolism due to fetal and early-life ARV exposure in HIV/ARV-exposed uninfected (HEU) infants. OBJECTIVE: The objective of the study was to understand the relationship(s) between mitochondrial fuel use (assessed via acylcarnitines and branched chain amino acids) and preprandial insulin in infants exposed to in utero HIV/ARV plus postnatal zidovudine or nevirapine compared with HIV/ARV-unexposed uninfected (HUU) infants. DESIGN: This was a prospective cohort study with the following three groups: 1) intrauterine HIV/ARV/postnatal zidovudine-exposed (HEU-A), 2) intrauterine HIV/ARV/postnatal nevirapine-exposed (HEU-N), and 3) HUU infants. Principal component analysis and linear regression modeling were performed to assess the association between in utero HIV/ARV exposure and infant insulin. SETTING: The study was conducted at Cameroonian urban antenatal centers. PARTICIPANTS: HIV-infected and -uninfected pregnant woman/infant dyads participated in the study. MAIN OUTCOME: Preprandial insulin was the main outcome measured. RESULTS: Of 366 infants, 38 were HEU-A, 118 HEU-N. Forty intermediary metabolites were consolidated into seven principal components. In a multivariate analysis, both HEU-A (ß = -.116, P= .012) and HEU-N (ß = -.070, P= .022) demonstrated lower insulin compared with HUU infants. However, at high levels of plasma metabolites, HEU-A (ß = .027, P= .050) exhibited higher insulin levels than HEU-N or HUU infants. A unique array of short-chain acylcarnitines (ß = .044, P= .001) and branched-chain amino acids (ß = .033, P= .012) was associated with insulin. CONCLUSION: HEU-A and HEU-N infants have lower preprandial insulin levels at 6 weeks of age and appear to use metabolic fuel substrates differently than HUU infants. Future studies are warranted to determine whether observed differences have lasting metabolic implications, such as later insulin resistance.


Asunto(s)
Antirretrovirales/farmacología , Metabolismo Energético/efectos de los fármacos , Infecciones por VIH/metabolismo , Insulina/sangre , Nevirapina/farmacología , Zidovudina/farmacología , Aminoácidos de Cadena Ramificada/sangre , Antirretrovirales/uso terapéutico , Camerún , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Lactante , Masculino , Nevirapina/uso terapéutico , Embarazo , Estudios Prospectivos , Zidovudina/uso terapéutico
19.
J Acquir Immune Defic Syndr ; 70(1): e5-9, 2015 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-26068722

RESUMEN

BACKGROUND: Given the ambitious targets to reduce pediatric AIDS worldwide, ongoing assessment of programs to prevent mother-to-child HIV transmission (PMTCT) is critical. The concept of a "PMTCT cascade" has been used widely to identify bottlenecks in program implementation; however, most efforts to reconstruct the cascade have relied on facility-based approaches that may limit external validity. METHODS: We analyzed data from the PEARL household survey, which measured PMTCT effectiveness in 26 communities across Zambia, South Africa, Cote d'Ivoire, and Cameroon. We recruited women who reported a delivery in the past 2 years. Among mothers confirmed to be HIV infected at the time of survey, we reconstructed the PMTCT cascade with self-reported participant information. We also analyzed data about the child's vital status; for those still alive, HIV testing was performed by DNA polymerase chain reaction testing. RESULTS: Of the 976 eligible women, only 355 (36%) completed every step of the PMTCT cascade. Among the 621 mother-child pairs who did not, 22 (4%) reported never seeking antenatal care, 103 (17%) were not tested for HIV during pregnancy, 395 (64%) reported testing but never received their HIV-positive result, 48 (8%) did not receive maternal antiretroviral prophylaxis, and 53 (9%) did not receive infant antiretroviral prophylaxis. The lowest prevalence of infant HIV infection or death was observed in those completing the cascade (10%, 95% confidence interval: 7% to 12%). CONCLUSIONS: Future efforts to measure population PMTCT impact should incorporate dimensions explored in the PEARL study-including HIV testing of HIV-exposed children in household surveys-to better understand program effectiveness.


Asunto(s)
Control de Enfermedades Transmisibles/métodos , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Adulto , África , Preescolar , Control de Enfermedades Transmisibles/organización & administración , Estudios Transversales , Composición Familiar , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Embarazo , Adulto Joven
20.
Vaccine ; 32(35): 4399-4403, 2014 Jul 31.
Artículo en Inglés | MEDLINE | ID: mdl-24968154

RESUMEN

BACKGROUND: Cameroon has the highest age-standardized incidence rate of cervical cancer (30/100,000 women) in Central Africa. In 2010-2011, the Cameroon Baptist Convention Health Services (CBCHS) received donated human papillomavirus (HPV) vaccine, Gardasil, from Merck & Co. Inc. through Axios Healthcare Development to immunize 6400 girls aged 9-13 years. The aim was to inform the Cameroon Ministry of Health (MOH) of the acceptability, feasibility, and optimal delivery strategies for HPV vaccine. METHODS AND FINDINGS: Following approval by the MOH, CBCHS nurses educated girls, parents, and communities about HPV, cervical cancer, and HPV vaccine through multimedia coverage, brochures, posters, and presentations. Because educators were initially reluctant to allow immunization in schools, due to fear of adverse events, the nurses performed 40.7% of vaccinations in the clinics, 34.5% in community venues, and only 24.7% in schools. When no adverse events were reported, more schools and communities permitted HPV vaccine immunization on their premises. To recover administrative costs, CBCHS charged a fee of US$8 per 3-dose series only to those who were able to pay. Despite the fee, 84.6% of the 6,851 girls who received the first dose received all three doses. CONCLUSIONS AND LESSONS LEARNED: With adequate education of all stakeholders, HPV vaccination is acceptable and feasible in Cameroon. Following this demonstration project, in 2014 the Global Access to Vaccines and Immunization (GAVI) Alliance awarded the Cameroon MOH HPV vaccine at a price of US$4.50 per dose to immunize sixth grade girls and girls aged 10 years who are not in school in two districts of Cameroon.


Asunto(s)
Infecciones por Papillomavirus/prevención & control , Vacunas contra Papillomavirus/administración & dosificación , Vacunas contra Papillomavirus/inmunología , Vacunación/estadística & datos numéricos , Adolescente , Adulto , Camerún , Niño , Femenino , Educación en Salud , Humanos , Infecciones por Papillomavirus/inmunología , Embarazo , Adulto Joven
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