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1.
PLoS Pathog ; 19(12): e1011861, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38117834

RESUMO

Age at HIV acquisition may influence viral pathogenesis in infants, and yet infection timing (i.e. date of infection) is not always known. Adult studies have estimated infection timing using rates of HIV RNA diversification, however, it is unknown whether adult-trained models can provide accurate predictions when used for infants due to possible differences in viral dynamics. While rates of viral diversification have been well defined for adults, there are limited data characterizing these dynamics for infants. Here, we performed Illumina sequencing of gag and pol using longitudinal plasma samples from 22 Kenyan infants with well-characterized infection timing. We used these data to characterize viral diversity changes over time by designing an infant-trained Bayesian hierarchical regression model that predicts time since infection using viral diversity. We show that diversity accumulates with time for most infants (median rate within pol = 0.00079 diversity/month), and diversity accumulates much faster than in adults (compare previously-reported adult rate within pol = 0.00024 diversity/month [1]). We find that the infant rate of viral diversification varies by individual, gene region, and relative timing of infection, but not by set-point viral load or rate of CD4+ T cell decline. We compare the predictive performance of this infant-trained Bayesian hierarchical regression model with simple linear regression models trained using the same infant data, as well as existing adult-trained models [1]. Using an independent dataset from an additional 15 infants with frequent HIV testing to define infection timing, we demonstrate that infant-trained models more accurately estimate time since infection than existing adult-trained models. This work will be useful for timing HIV acquisition for infants with unknown infection timing and for refining our understanding of how viral diversity accumulates in infants, both of which may have broad implications for the future development of infant-specific therapeutic and preventive interventions.


Assuntos
Infecções por HIV , Lactente , Adulto , Humanos , Teorema de Bayes , Quênia/epidemiologia , Linfócitos T CD4-Positivos , Carga Viral
2.
BMC Cardiovasc Disord ; 24(1): 260, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38769516

RESUMO

INTRODUCTION: Use of doxorubicin, an anthracycline chemotherapeutic agent has been associated with late-occurring cardiac toxicities. Detection of early-occurring cardiac effects of cancer chemotherapy is essential to prevent occurrence of adverse events including toxicity, myocardial dysfunction, and death. OBJECTIVE: To investigate the prevalence of elevated cardiac troponin T (cTnT) and associated factors of myocardial injury in children on doxorubicin cancer chemotherapy. METHODS: Design: A cross-sectional study. SETTING AND SUBJECTS: A hospital-based study conducted on children aged 1-month to 12.4-years who had a diagnosis of cancer and were admitted at Kenyatta National Hospital (KNH). INTERVENTIONS AND OUTCOMES: The patients underwent Echocardiography (ECHO) before their scheduled chemotherapy infusion. Twenty-four (24) hours after the chemotherapy infusion the patients had an evaluation of the serum cardiac troponin T (cTnT) and a repeat ECHO. Myocardial injury was defined as cTnT level > 0.014 ng/ml or a Fractional Shortening (FS) of < 29% on ECHO. RESULTS: One hundred (100) children were included in the final analysis. Thirty-two percent (32%) of the study population had an elevated cTnT. A cumulative doxorubicin dose of > 175 mg/m2 was significantly associated with and elevated cTnT (OR, 10.76; 95% CI, 1.18-97.92; p = 0.035). Diagnosis of nephroblastoma was also associated with an elevated cTnT (OR, 3.0; 95% CI, 1.23-7.26) but not statistically significant (p = 0.105). Nine percent (9%) of the participants had echocardiographic evidence of myocardial injury. CONCLUSION: When compared to echocardiography, elevated levels of cTnT showed a higher association with early-occurring chemotherapy-induced myocardial injury among children on cancer treatment at a tertiary teaching and referral hospital in Kenya.


Assuntos
Antibióticos Antineoplásicos , Biomarcadores , Cardiotoxicidade , Doxorrubicina , Neoplasias , Centros de Atenção Terciária , Troponina T , Humanos , Estudos Transversais , Masculino , Feminino , Doxorrubicina/efeitos adversos , Criança , Quênia/epidemiologia , Troponina T/sangue , Pré-Escolar , Antibióticos Antineoplásicos/efeitos adversos , Lactente , Neoplasias/tratamento farmacológico , Neoplasias/sangue , Fatores de Risco , Biomarcadores/sangue , Prevalência , Fatores de Tempo , Regulação para Cima , Cardiopatias/induzido quimicamente , Cardiopatias/epidemiologia , Cardiopatias/diagnóstico por imagem , Cardiopatias/diagnóstico , Cardiopatias/sangue , Fatores Etários , Medição de Risco , Ecocardiografia
3.
BMC Pregnancy Childbirth ; 24(1): 127, 2024 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-38347445

RESUMO

INTRODUCTION: Adverse birth outcomes particularly preterm births and congenital anomalies, are the leading causes of infant mortality globally, and the burden is highest in developing countries. We set out to determine the frequency of adverse birth outcomes and the risk factors associated with such outcomes in a cohort of pregnant women in Kenya. METHODS: From October 2017 to July 2019, pregnant women < 28 weeks gestation were enrolled and followed up until delivery in three hospitals in coastal Kenya. Newborns were examined at delivery. Among women with birth outcome data, we assessed the frequency of congenital anomalies defined as gastroschisis, umbilical hernia, limb abnormalities and Trisomy 21, and adverse birth outcomes, defined as either stillbirth, miscarriage, preterm birth, small for gestational age, or microcephaly. We used log-binomial regression to identify maternal characteristics associated with the presence of at least one adverse outcome. RESULTS: Among the 2312 women enrolled, 1916 (82.9%) had birth outcome data. Overall, 402/1916 (20.9%; 95% confidence interval (CI): 19.1-22.8) pregnancies had adverse birth outcomes. Specifically, 66/1916 (3.4%; 95% CI: 2.7-4.4) were stillbirths, 34/1916 (1.8%; 95% CI: 1.2-2.4) were miscarriages and 23/1816 (1.2%; 95% CI: 0.8-1.9) had congenital anomalies. Among the participants with anthropometric measurements data, 142/1200 (11.8%; 95% CI: 10.1 - 13.8) were small for gestational age and among the participants with ultrasound records, 143/1711 (8.4%; 95% CI: 7.1-9.8) were preterm. Febrile illnesses in current pregnancy (adjusted risk ratio (aRR): 1.7; 95% CI: 1.1-2.8), a history of poor birth outcomes in prior pregnancy (aRR: 1.8; 95% CI: 1.3-2.4) and high blood pressure in pregnancy (aRR: 3.9, 95% CI: (1.7-9.2) were independently associated with adverse birth outcomes in a model that included age, education, human immunodeficiency virus status and high blood pressure at enrolment. CONCLUSION: We found similar rates of overall adverse birth outcomes, congenital anomalies, and small for gestational age but higher rates of stillbirths and lower rates of prematurity compared to the rates that have been reported in the sub-Saharan Africa region. However, the rates of adverse birth outcomes in this study were comparable to other studies conducted in Kenya. Febrile illnesses during the current pregnancy, previous history of poor birth outcomes and high blood pressure in pregnancy are predictive of an increased risk of adverse birth outcomes.


Assuntos
Aborto Espontâneo , Hipertensão , Complicações na Gravidez , Nascimento Prematuro , Gravidez , Recém-Nascido , Feminino , Humanos , Natimorto/epidemiologia , Resultado da Gravidez/epidemiologia , Gestantes , Quênia/epidemiologia , Nascimento Prematuro/epidemiologia , Complicações na Gravidez/epidemiologia , Fatores de Risco , Aborto Espontâneo/epidemiologia , Retardo do Crescimento Fetal
4.
J Interprof Care ; 38(5): 942-946, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38717763

RESUMO

Interprofessional (IP) education is imperative to foster collaboration within and between healthcare professions to improve healthcare delivery and outcomes. Increasing the capacity of health professions faculty to effectively deliver learning about IP knowledge and skills fosters sustainability of IP care in health systems. This short report describes a series of three virtual IP faculty development workshops during 2020-2021 that used a Train-the-Trainer approach and adopted flexible and context-specific teaching methods to enhance learning. The collaboration involved interprofessional researchers from the University of Washington Center for Health Sciences Interprofessional Education, Research, and Practice and Kenyan health professions faculty and was supported by a global health grant. Learners were drawn from multiple health professions and healthcare institutions in Kenya. Content was packaged in lectures, videos, pictures, and session notes. Teaching methods adopted included lecturing, discussing, playing videos, interpretation of pictures, and reading text notes. The Train-the-Trainer approach helped ensure that workshop content and plans were relevant to participants. Workshop participants shared positive feedback about the trainings and showed a good grasp of the concepts and skills. In-built feedback mechanisms in training were key in supporting the programme and ensured continuous improvement within and between sessions. This collaboration offers an innovative example of a global partnership to support IP faculty development and mainstreaming of IPE in training and in practice.


Assuntos
COVID-19 , Educação Interprofissional , Quênia , Humanos , Educação Interprofissional/organização & administração , Comportamento Cooperativo , SARS-CoV-2 , Relações Interprofissionais , Docentes , Desenvolvimento de Pessoal/organização & administração , Cooperação Internacional , Pandemias
5.
J Med Virol ; 95(1): e28221, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36251533

RESUMO

A multitude of enzyme-linked immunosorbent assays (ELISAs) has been developed to detect severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies since the coronavirus disease 2019 pandemic started in late 2019. Assessing the reliability of these assays in diverse global populations is critical. This study compares the use of the commercially available Platelia Total Ab Assay (Bio-Rad) nucleocapsid ELISA to the widely used Mount Sinai spike IgG ELISA in a Kenyan population seroprevalence study. Using longitudinal plasma specimens collected from a mother-infant cohort living in Nairobi, Kenya between May 2019 and December 2020, this study demonstrates that the two assays have a high qualitative agreement (92.7%) and strong correlation of antibody levels (R2 = 0.973) in repeated measures. Within this cohort, seroprevalence detected by either ELISA closely resembled previously published seroprevalence estimates for Kenya during the sampling period and no significant difference in the incidence of SARS-CoV-2 antibody detection by either assay was observed. Assay comparability was not affected by HIV exposure status. These data support the use of the Platelia SARS-CoV-2 Total Ab ELISA as a suitable high-throughput method for seroprevalence studies in Kenya.


Assuntos
COVID-19 , SARS-CoV-2 , Feminino , Lactente , Humanos , COVID-19/diagnóstico , COVID-19/epidemiologia , Quênia/epidemiologia , Estudos Soroepidemiológicos , Reprodutibilidade dos Testes , Ensaio de Imunoadsorção Enzimática/métodos , Nucleocapsídeo , Anticorpos Antivirais , Glicoproteína da Espícula de Coronavírus , Sensibilidade e Especificidade
6.
Trop Med Int Health ; 28(6): 466-475, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37177902

RESUMO

OBJECTIVE: HIV stigma and discrimination is widespread in sub-Saharan Africa and is associated with poor clinical outcomes. Schools play a critical role in the life of youth and have been identified as a potentially stigmatising environment. We sought to explore school HIV stigma drivers, facilitators, manifestations and outcomes among youth living with HIV (YLH) as well as potential stigma reduction interventions in Kenya. METHODS: Semi-structured in-depth qualitative interviews with 28 school-attending YLH aged 14-19 years and 24 caregivers of YLH were analysed using directed content analysis. Results were summarised using the Health and Stigma Framework. RESULTS: Drivers and facilitators of HIV stigma in the school environment included misconceptions about HIV transmission, HIV treatment outcomes and long-term overall health of people living with HIV. HIV stigma manifested largely as gossip, isolation and loss of friendships. Fear of HIV stigma or experienced stigma resulted in poor adherence to antiretroviral treatment-particularly among YLH in boarding schools-and poor mental health. Stigma also impacted school choice (boarding vs. day school) and prevented HIV disclosure to schools which was necessary for optimal support for care. Proposed interventions to address HIV stigma in schools included HIV education, psychosocial support for YLH, support for HIV disclosure to schools while ensuring confidentiality and building YLH resilience. CONCLUSION: There is an urgent need to develop interventions to address HIV stigma in schools to ensure optimised health and social outcomes for YLH. Future studies to understand the most effective and efficient interventions are needed.


Assuntos
Infecções por HIV , Humanos , Adolescente , Infecções por HIV/tratamento farmacológico , Infecções por HIV/psicologia , Cuidadores/psicologia , Amor , Estigma Social , Instituições Acadêmicas , Quênia , Pesquisa Qualitativa
7.
AIDS Behav ; 27(8): 2566-2578, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36646929

RESUMO

HIV stigma remains a barrier in achieving optimal HIV treatment. We studied the prevalence and predictors of HIV stigma among adolescents and youth with HIV (AYWHIV) ages 15-24 years in Western Kenya. Of 1011 AYWHIV, 69% were female with a median age of 18 years. Most (59%) attended adolescent clinic days, and 40% attended support groups. One-quarter (27%) had experienced physical, 18% emotional, and 7% sexual violence. The majority of AYWHIV (88%) reported disclosure concerns, 48% reported perceived community stigma, 36% experienced, and 24% internalized stigma. Compared to AYWHIV attending adolescent clinics, those in general/adult clinics had higher internalized stigma. Similarly, having dropped out of school was associated with higher internalized stigma. AYWHIV in sexual relationships had higher experienced stigma and disclosure concerns. Lastly, exposure to violence was associated with higher experienced, internalized, perceived community stigma and disclosure concerns. These risk factors can be targeted when developing stigma-prevention interventions.


Assuntos
Infecções por HIV , HIV , Adulto , Humanos , Feminino , Adolescente , Masculino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Quênia/epidemiologia , Estigma Social , Emoções
8.
BMC Public Health ; 23(1): 519, 2023 03 17.
Artigo em Inglês | MEDLINE | ID: mdl-36932351

RESUMO

BACKGROUND: There is mixed evidence on the influence of self-disclosure of one's HIV status on mental health, health behaviours and clinical outcomes. We studied the patterns of self-disclosure among parents living with HIV, and factors that influence parental disclosure. METHODS: This mixed-methods study was among adults in HIV care participating in a study assessing the uptake of pediatric index-case testing. They completed a survey to provide demographic and HIV-related health information, and assess self-disclosure to partners, children and others. We ran generalized linear models to determine factors associated with disclosure and reported prevalence ratios (PR). Eighteen participants also participated in in-depth interviews to explore perceived barriers and facilitators of self-disclosure to one's child. A content analysis approach was used to analyze interview transcripts. RESULTS: Of 493 caregivers, 238 (48%) had a child ≥ 6 years old who could potentially be disclosed to about their parent's HIV status. Of 238 participants, 205 (86%) were female, median age was 35 years, and 132 (55%) were in a stable relationship. Among those in a stable relationship, 96 (73%) knew their partner's HIV status, with 79 (60%) reporting that their partner was living with HIV. Caregivers had known their HIV status for a median 2 years, and the median age of their oldest child was 11 years old. Older caregiver age and older first born child's age were each associated with 10% higher likelihood of having disclosed to a child (PR: 1.10 [1.06-1.13] and PR: 1.10 [1.06-1.15], per year of age, respectively). The child's age or perceived maturity and fear of causing anxiety to the child inhibited disclosure. Child's sexual activity was a motivator for disclosure, as well as the belief that disclosing was the "right thing to do". Caregivers advocated for peer and counseling support to gain insight on appropriate ways to disclose their status. CONCLUSIONS: Child's age is a key consideration for parents to disclose their own HIV status to their children. While parents were open to disclosing their HIV status to their children, there is a need to address barriers including anticipated stigma, and fear that disclosure will cause distress to their children.


Assuntos
Infecções por HIV , Revelação da Verdade , Adulto , Humanos , Criança , Feminino , Masculino , Quênia/epidemiologia , Estigma Social , Pais/psicologia , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia
9.
Afr J AIDS Res ; 22(3): 244-246, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38015893

RESUMO

HIV-exposed uninfected (HEU) children and adolescents are at higher risk of poor outcomes compared to HIV-unexposed children (HUU). In program settings, it is critical to understand how to identify HEU for screening services. We describe our experience identifying HEU for a neurodevelopment and mental health screening study. We recruited mothers living with HIV (MLHIV) and mothers not living with HIV (MNHIV) and enrolled their HEU or HUU children. We summarise the reasons for ineligibility and recruitment challenges. Among MLHIV, their child's ineligibility increased with age: 12%, 27%, 50% and 80% in age groups 3-6, 7-10, 11-14, and 15-18, respectively (p < 0.001). Reasons for ineligibility were unknown maternal HIV status during pregnancy or breastfeeding (30%), and maternal disinterest due to fear of inadvertent disclosure of their HIV status to older youth. Recruiting older HEU youth is challenging. Maternal concerns of self-disclosing their HIV status impedes identification of older HEU.


Assuntos
Infecções por HIV , Complicações Infecciosas na Gravidez , Gravidez , Feminino , Criança , Humanos , Adolescente , Lactente , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Mães , Revelação
10.
J Infect Dis ; 226(4): 678-686, 2022 09 04.
Artigo em Inglês | MEDLINE | ID: mdl-35403695

RESUMO

BACKGROUND: The impact of human immunodeficiency virus (HIV) on pregnancy outcomes for women on antiretroviral therapy (ART) in sub-Saharan Africa remains unclear. METHODS: Pregnant women in Kenya were enrolled in the second trimester and followed up to delivery. We estimated effects of treated HIV with 3 pregnancy outcomes: loss, premature birth, and low birth weight and factors associated with HIV-positive status. RESULTS: Of 2113 participants, 311 (15%) were HIV infected and on ART. Ninety-one of 1762 (5%) experienced a pregnancy loss, 169/1725 (10%) a premature birth (<37 weeks), and 74/1317 (6%) had a low-birth-weight newborn (<2500 g). There was no evidence of associations between treated HIV infection and pregnancy loss (adjusted relative risk [aRR], 1.19; 95% confidence interval [CI], .65-2.16; P = .57), prematurity (aRR, 1.09; 95% CI, .70-1.70; P = .69), and low birth weight (aRR, 1.36; 95% CI, .77-2.40; P = .27). Factors associated with an HIV-positive status included older age, food insecurity, lower education level, higher parity, lower gestation at first antenatal clinic, anemia, and syphilis. Women who were overweight or underweight were less likely to be HIV infected compared to those with normal weight. CONCLUSIONS: Currently treated HIV was not significantly associated with adverse pregnancy outcomes. HIV-infected women, however, had a higher prevalence of other factors associated with adverse pregnancy outcomes.


Assuntos
Aborto Espontâneo , Infecções por HIV , Complicações Infecciosas na Gravidez , Complicações na Gravidez , Nascimento Prematuro , Antirretrovirais/uso terapêutico , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Recém-Nascido , Quênia/epidemiologia , Gravidez , Complicações na Gravidez/tratamento farmacológico , Complicações na Gravidez/epidemiologia , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Nascimento Prematuro/epidemiologia
11.
Clin Infect Dis ; 74(7): 1237-1246, 2022 04 09.
Artigo em Inglês | MEDLINE | ID: mdl-34214163

RESUMO

BACKGROUND: Cytomegalovirus (CMV) viremia is common in human immunodeficiency virus (HIV) infection and is associated with worse long-term outcomes. To date, no studies have assessed CMV viremia in children diagnosed with HIV in hospital. METHODS: We studied CMV viremia and clinical outcomes in 163 Kenyan children aged 2 months to 12 years, diagnosed with HIV in hospital. CMV DNA levels in plasma were measured using quantitative polymerase chain reaction (PCR). Regression models were used to assess associations between CMV viremia ≥1000 IU/mL and the risk of continued hospitalization or death at 15 days, duration of hospitalization, and 6-month mortality. RESULTS: At enrollment, 62/114 (54%) children had CMV viremia, and 20 (32%) were ≥1000 IU/mL. Eleven CMV reactivations were observed after admission. The prevalence and level of CMV viremia were highest in children <2 years and lowest in children ≥5 years old. CMV viremia ≥1000 IU/mL was independently associated with age <2 years (P = .03), higher log10 HIV RNA level (P = .01), and height-for-age z score >-2 (P = .02). Adjusting for age and log10 HIV RNA, the relative risk of death or continued hospitalization at 15 days was 1.74 (95% confidence interval [CI] = 1.04, 2.90), and the hazard ratio of 6-month mortality was 1.97 (95% CI = .57, 5.07) for children with CMV DNA ≥1000 IU/mL compared to lower-level or undetectable CMV DNA. Children with CMV DNA ≥1000 IU/mL were hospitalized a median ~5 days longer than children with lower-level or undetectable CMV DNA (P = .002). CONCLUSIONS: In this nested observational study, CMV viremia was common in hospitalized children with HIV, and levels ≥1000 IU/mL were associated with increased risk of mortality and longer hospitalization.


Assuntos
Infecções por Citomegalovirus , Infecções por HIV , Criança , Pré-Escolar , Citomegalovirus/genética , Infecções por Citomegalovirus/complicações , Infecções por Citomegalovirus/diagnóstico , Infecções por Citomegalovirus/epidemiologia , HIV/genética , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Hospitais , Humanos , Quênia/epidemiologia , RNA , Viremia/epidemiologia
12.
BMC Med ; 20(1): 291, 2022 09 14.
Artigo em Inglês | MEDLINE | ID: mdl-36100910

RESUMO

BACKGROUND: Zika virus (ZIKV), first discovered in Uganda in 1947, re-emerged globally in 2013 and was later associated with microcephaly and other birth defects. We determined the incidence of ZIKV infection and its association with adverse pregnancy and fetal outcomes in a pregnancy cohort in Kenya. METHODS: From October 2017 to July 2019, we recruited and followed up women aged ≥ 15 years and ≤ 28 weeks pregnant in three hospitals in coastal Mombasa. Monthly follow-up included risk factor questions and a blood sample collected for ZIKV serology. We collected anthropometric measures (including head circumference), cord blood, venous blood from newborns, and any evidence of birth defects. Microcephaly was defined as a head circumference (HC) < 2 standard deviations (SD) for sex and gestational age. Severe microcephaly was defined as HC < 3 SD for sex and age. We tested sera for anti-ZIKV IgM antibodies using capture enzyme-linked immunosorbent assay (ELISA) and confirmed positives using the plaque reduction neutralization test (PRNT90) for ZIKV and for dengue (DENV) on the samples that were ZIKV neutralizing antibody positive. We collected blood and urine from participants reporting fever or rash for ZIKV testing. RESULTS: Of 2889 pregnant women screened for eligibility, 2312 (80%) were enrolled. Of 1916 recorded deliveries, 1816 (94.6%) were live births and 100 (5.2%) were either stillbirths or spontaneous abortions (< 22 weeks of gestation). Among 1236 newborns with complete anthropometric measures, 11 (0.9%) had microcephaly and 3 (0.2%) had severe microcephaly. A total of 166 (7.2%) participants were positive for anti-ZIKV IgM, 136 of whom became seropositive during follow-up. Among the 166 anti-ZIKV IgM positive, 3 and 18 participants were further seropositive for ZIKV and DENV neutralizing antibodies, respectively. Of these 3 and 18 pregnant women, one and 13 (72.2%) seroconverted with antibodies to ZIKV and DENV, respectively. All 308 samples (serum and urine samples collected during sick visits and samples that were anti-ZIKV IgM positive) tested by RT-PCR were negative for ZIKV. No adverse pregnancy or neonatal outcomes were reported among the three participants with confirmed ZIKV exposure. Among newborns from pregnant women with DENV exposure, four (22.2%) were small for gestational age and one (5.6%) had microcephaly. CONCLUSIONS: The prevalence of severe microcephaly among newborns in coastal Kenya was high relative to published estimates from facility-based studies in Europe and Latin America, but little evidence of ZIKV transmission. There is a need for improved surveillance for microcephaly and other congenital malformations in Kenya.


Assuntos
Microcefalia , Infecção por Zika virus , Zika virus , Anticorpos Antivirais , Feminino , Humanos , Imunoglobulina M , Recém-Nascido , Quênia/epidemiologia , Microcefalia/epidemiologia , Gravidez , Prevalência , Infecção por Zika virus/complicações , Infecção por Zika virus/diagnóstico , Infecção por Zika virus/epidemiologia
13.
AIDS Behav ; 26(9): 3045-3055, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35306611

RESUMO

Expanding index and family-based testing (HBT) is a priority for identifying children living with HIV. Our study characterizes predictors that drive testing location choice for children of parents living with HIV. Kenyan adults living with HIV were offered a choice of HBT or clinic-based testing (CBT) for any of their children (0-12 years) of unknown HIV status. Multilevel generalized linear models were used to identify correlates of choosing HBT or CBT for children and testing all versus some children within a family, including caregiver demographics, HIV history, social support, cost, and child demographics and HIV prevention history. Among 244 caregivers living with HIV and their children of unknown HIV status, most (72%) caregivers tested children using CBT. In multivariate analysis, female caregivers [aRR 0.52 (95% CI 0.34-0.80)] were less likely to choose HBT than male caregivers. Caregivers with more children requiring testing [aRR 1.23 (95% CI 1.05-1.44)] were more likely to choose HBT than those with fewer children requiring testing. In subgroup univariate analysis, female caregivers with a known HIV negative spouse were significantly more likely to choose HBT over CBT than those with a known HIV positive spouse [RR 2.57 (95% CI 1.28-5.14), p = 0.008], no association was found for male caregivers. Child demographics and clinical history was not associated with study outcomes. Caregiver-specific factors were more influential than child-specific factors in caregiver choice of pediatric HIV testing location. Home-based testing may be preferable to families with higher child care needs and may encourage pediatric HIV testing if offered as an alternative to clinic testing.


Assuntos
Cuidadores , Infecções por HIV , Teste de HIV , Adulto , Criança , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Teste de HIV/métodos , Humanos , Quênia/epidemiologia , Masculino , Apoio Social
14.
AIDS Behav ; 26(11): 3775-3782, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35674886

RESUMO

Video-based pre-test information is used in high resource settings to increase HIV testing coverage but remains untested in resource-limited settings. We conducted formative and evaluative focus group discussions with healthcare workers (HCWs) and caregivers of children in Kenya to develop and refine a pediatric HIV pre-test informational video. We then assessed HIV knowledge among caregivers sequentially enrolled in one of three pre-test information groups: (1) individual HCW-led (N = 50), (2) individual video-based (N = 50), and (3) group video-based (N = 50) sessions. A brief video incorporating information on national pediatric testing, modes of HIV transmission, and dramatized testimonials of caregivers who tested children was produced in three languages. Compared to individual HCW-led sessions (mean: 7.2/9; standard deviation [SD]: 1.3), both the group video-based (mean: 7.7; SD: 0.9) and individual video-based (mean: 7.6; SD: 0.9) sessions had higher mean knowledge scores. Video-based pre-test information could enhance existing pediatric HIV testing services.


Assuntos
Conselheiros , Infecções por HIV , Cuidadores , Criança , Grupos Focais , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Teste de HIV , Humanos , Quênia
15.
AIDS Care ; 34(9): 1127-1134, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34482776

RESUMO

ABSTRACTThe health care transition (HCT) from pediatric to adult care is a potential contributor to poor clinical outcomes among adolescents living with HIV (ALHIV). In sub-Saharan Africa (SSA), there is limited information on effective tools and processes to prepare and support ALHIV through this transition. This study elicited perspectives of policy-makers regarding barriers and facilitators to successful HCT among ALHIV in Kenya. Twenty in-depth interviews (IDIs) were conducted with policy-makers using a semi-structured guide. Using the socio-ecological model (SEM) as an organizing framework, directed content and thematic network analyses methods were used to characterize themes related to key influences on HCT processes and to describe actionable recommendations for improved tools and resources. Policy-makers identified multilevel support, including the development of a triadic relationship between the caregiver, healthcare worker (HCW) and adolescent, as an essential strategy for improved HCT success. Across the SEM, policy-makers described the importance of actively engaging adolescents in their care to promote increased ownership and autonomy over health decisions. At the structural level, the need for more comprehensive HCT guidelines and improved HCW training was highlighted. Expanded HCT tools and guidelines, that emphasize supportive relationships and intensified adolescent engagement, may improve HCT processes and outcomes.


Assuntos
Infecções por HIV , Transição para Assistência do Adulto , Adolescente , Adulto , Criança , Infecções por HIV/terapia , Humanos , Quênia , Transferência de Pacientes , Políticas
16.
J Infect Dis ; 223(11): 1923-1927, 2021 06 04.
Artigo em Inglês | MEDLINE | ID: mdl-33064809

RESUMO

Identifying determinants of human immunodeficiency virus (HIV) reservoir levels may inform novel viral eradication strategies. Cytomegalovirus (CMV) and Epstein-Barr virus (EBV) coinfections were assessed as predictors of HIV proviral DNA level in 26 HIV RNA-suppressed Kenyan children starting antiretroviral therapy before 7 months of age. Earlier acquisition of CMV and EBV and higher cumulative burden of systemic EBV DNA viremia were each associated with higher HIV DNA level in the reservoir after 24 months of antiretroviral therapy, independent of HIV RNA levels over time. These data suggest that delaying or containing CMV and EBV viremia may be novel strategies to limit HIV reservoir formation.


Assuntos
Antirretrovirais/uso terapêutico , Infecções por Citomegalovirus , Infecções por Vírus Epstein-Barr , Infecções por HIV , Carga Viral , Viremia , Citomegalovirus , DNA Viral/genética , Infecções por HIV/tratamento farmacológico , HIV-1/genética , Herpesvirus Humano 4 , Humanos , Lactente , Quênia/epidemiologia
17.
AIDS Behav ; 25(9): 2661-2668, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34170433

RESUMO

Children living with HIV experience gaps in HIV testing globally; scaling up evidence-based testing strategies is critical for preventing HIV-related mortality. Financial incentives (FI) were recently demonstrated to increase uptake of pediatric HIV testing. As part of this qualitative follow-up study to the FIT trial (NCT03049917) conducted in Kenya, 54 caregivers participated in individual interviews. Interview transcripts were analyzed to identify considerations for scaling up FI for pediatric testing. Caregivers reported that FI function by directly offsetting costs or nudging caregivers to take action sooner. Caregivers found FI to be feasible and acceptable for broader programmatic implementation, and supported use for a variety of populations. Some concerns were raised about unintended consequences of FI, including caregivers bringing ineligible children to collect incentives and fears about the impact on linkage to care and retention if caregivers become dependent on FI.


Assuntos
Infecções por HIV , Motivação , Cuidadores , Criança , Seguimentos , Infecções por HIV/diagnóstico , Infecções por HIV/prevenção & controle , Teste de HIV , Humanos
18.
BMC Pediatr ; 21(1): 186, 2021 04 20.
Artigo em Inglês | MEDLINE | ID: mdl-33879118

RESUMO

BACKGROUND: HIV is a major contributor to infant mortality. A significant gap remains between the uptake of infant and maternal antiretroviral regimens and only a minority of HIV-exposed infants receives prophylaxis and safe infant feeding. Losses to follow-up of HIV-exposed infants are associated with shortcomings of facility-based PMTCT models with weak community support of linkages. Use of mobile phones offers an opportunity for improving care and promoting retention assessed by timely attendance of scheduled appointments for the mother-baby pairs and achievement of an HIV-free generation. The objective of this study was to compare self-reported adherence to infant Nevirapine (NVP) prophylaxis and retention in care assessed by timely attendance of scheduled appointments over 10 weeks in HIV exposed infants randomized to 2-weekly mobile phone calls (intervention) versus no phone calls (control). METHODS: In this open label randomized controlled study, one hundred and fifty HIV infected women drawn from 3 health facilities in Western Kenya and their infants were randomly assigned to receive either phone-based reminders on PMTCT messages or standard health care messages (no calls) within 24 h of delivery. Women in the intervention arm continued to receive fortnightly phone calls. At 6- and 10-weeks following randomization we collected data on infant adherence to Nevirapine, mode of infant feeding, early HIV testing and retention in care in both study arms. All analyses were intention to treat. RESULTS: At 6 weeks follow-up, 90.7% (n = 68) of participants receiving phone calls reported adherence to infant NVP prophylaxis, compared with 72% (n = 54) of participants in the control group (p = 0.005). Participants in the intervention arm were also significantly more likely to remain in care than participants in the control group [78.7% (n = 59) vs. 58.7% (n = 44), p = 0.009 at 6 weeks and 69.3% (n = 52) vs. 37.3% (n = 28), p < 0.001 at 10 weeks]. CONCLUSIONS: These results suggest that phone calls are potentially an important tool to improve adherence to infant NVP prophylaxis and retention in care for HIV-exposed infants. TRIAL REGISTRATION: PACTR202007654729602. Registered 6 June 2018 - Retrospectively registered, https://pactr.samrc.ac.za/TrialDisplay.aspx?TrialID=3449.


Assuntos
Fármacos Anti-HIV , Uso do Telefone Celular , Infecções por HIV , Complicações Infecciosas na Gravidez , Retenção nos Cuidados , Fármacos Anti-HIV/uso terapêutico , Criança , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Lactente , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Quênia , Nevirapina/uso terapêutico , Gravidez , Complicações Infecciosas na Gravidez/tratamento farmacológico , Complicações Infecciosas na Gravidez/prevenção & controle
19.
Int J Paediatr Dent ; 31(6): 708-715, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33368736

RESUMO

BACKGROUND: Few oral health studies have been conducted in HIV-exposed uninfected children, who, like their HIV-infected peers, have altered immunity and perinatal drug exposures. AIM: To compare caregiver' self-report of oral diseases, hygiene practices and utilization of routine dental care, between HIV-infected (HIV), HIV-exposed uninfected (HEU), and HIV-unexposed uninfected (HUU) children in Kenya. DESIGN: This nested cross-sectional study was conducted at the Kenyatta National Hospital, Nairobi, Kenya. Caregivers of 196 children (104 HIV-infected, 55 HEU, and 37 HUU) participated in this study. Using a validated questionnaire from the WHO and photographs of HIV-related oral lesions, we collected data on oral diseases and oral health practices. RESULTS: Caregivers of HIV-infected children reported at least one oral disease in their children (42%; HEU [27%]; HUU [17%; P = .008]). Oral candidiasis was the most common disease reported (HIV-infected [24%], HEU [5.5%], and HUU [2.8%; P < .05]). Baseline CD4% was associated with oral candidiasis (OR = 0.93, 95% CI: 0.88-0.98). Only 16% of children had ever visited a dentist, and most initiated brushing after 3 years of age (83%). Nearly all (98%) caregivers desired a follow-up oral examination. CONCLUSIONS: HIV infection/exposure and low CD4% were associated with increased odds of oral diseases. Most caregivers desired a follow-up oral examination for their children.


Assuntos
Infecções por HIV , Saúde Bucal , Contagem de Linfócito CD4 , Candidíase Bucal/complicações , Cuidadores , Criança , Estudos Transversais , Feminino , Infecções por HIV/complicações , Humanos , Quênia/epidemiologia , Gravidez
20.
Trop Med Int Health ; 25(5): 558-565, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31984597

RESUMO

OBJECTIVE: Tailored services for adolescents and young adults (AYA) living with HIV may improve treatment outcomes. We surveyed HIV clinics throughout Kenya to determine AYA clinic practices, disclosure and transition services. METHODS: We deployed a mobile team to conduct surveys in a random sample of 102 public HIV clinics with> 300 total clients. Data were collected from healthcare workers offering AYA services who had >6 months of experience delivering AYA care. RESULTS: Of 102 surveyed HIV clinics, almost all (101/102) had the same staff to provide services to all age groups. AYA-specific services included dedicated clinic days (91%), the majority being on weekends (57%) and designated clinic spaces (20%). Activities to support AYA retention and adherence were common (support groups [97%] and HIV literacy meetings [93%]). Fewer clinics offered more holistic care, including psychosocial support (16%) and career education (2%), posted additional staff during the AYA day (17%), provided food (17%) or had sporting activities (10%) as incentives. Tracking of disclosure of HIV status to AYA was common (87%). In 40% of clinics, disclosure discussions with caregivers or AYA occurred a median of 2 years later in practice than stated in clinic policy. Transition was not routinely tracked, and definitions were heterogeneous. Median age at transition was reported as 20 years (range: 14-30 years). CONCLUSION: HIV programmes have implemented varied approaches to enhance AYA services that could be leveraged to support transition to adult services. Research on the impact of these services on health outcomes is needed.


OBJECTIF: Des services taillés sur mesure pour les adolescents et les jeunes adultes (AJA) vivant avec le VIH peuvent améliorer les résultats du traitement. Nous avons mené une surveillance des cliniques VIH à travers le Kenya pour déterminer les pratiques, la divulgation et les services de transition dans les cliniques AJA. MÉTHODES: Nous avons déployé une équipe mobile pour mener des enquêtes sur un échantillon aléatoire de 102 cliniques publiques du VIH avec >300 patients au total. Les données ont été recueillies auprès d'agents de santé offrant des services AJA qui avaient >6 mois d'expérience dans la prestation de soins AJA. RÉSULTATS: Sur 102 cliniques VIH surveillées, presque toutes (101/102) avaient les mêmes personnels pour fournir des services à tous les groupes d'âge. Les services spécifiques AJA comprenaient des journées de clinique dédiées (91%), la majorité étant le week-end (57%) et des espaces de clinique désignés (20%). Les activités visant à soutenir la rétention et l'adhésion à l'AJA étaient courantes (groupes de soutien [97%] et réunions d'éducation sur le VIH [93%]). Peu de cliniques offraient de soins plus holistiques, y compris un soutien psychosocial (16%) et une formation professionnelle (2%), détachaient du personnel supplémentaire pendant la journée AJA (17%), fournissait de la nourriture (17%) ou pratiquaient des activités sportives (10%) comme des incitations. Le suivi de la divulgation du statut VIH aux AJA était courant (87%). Dans 40% des cliniques, les discussions de divulgation avec les soignants ou AJA ont eu lieu en moyenne 2 ans plus tard dans la pratique que ce qui est indiqué dans la politique de la clinique. La transition n'était pas systématiquement suivie et les définitions étaient hétérogènes. L'âge médian au moment de la transition était de 20 ans (intervalle: 14-30 ans). CONCLUSION: Les programmes de lutte contre le VIH ont mis en œuvre diverses approches pour améliorer les services AJA qui pourraient être exploitées pour soutenir la transition vers les services pour adultes. Des recherches sur l'impact de ces services sur les résultats de santé sont nécessaires.


Assuntos
Serviços de Saúde do Adolescente/estatística & dados numéricos , Infecções por HIV/terapia , HIV-1 , Transição para Assistência do Adulto/estatística & dados numéricos , Adolescente , Adulto , Feminino , Humanos , Quênia , Masculino , Inquéritos e Questionários , Adulto Jovem
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