Antiretroviral therapy retention, adherence, and clinical outcomes among postpartum women with HIV in Nigeria.

While research involving pregnant women with HIV has largely focused on the antepartum and intrapartum periods, few studies in Nigeria have examined the clinical outcomes of these women postpartum. This study aimed to evaluate antiretroviral therapy retention, adherence, and viral suppression among postpartum women in Nigeria. This retrospective clinical data analysis included women with a delivery record at the antenatal HIV clinic at Jos University Teaching Hospital between 2013 and 2017.

SARS-CoV-2 live virus culture and sample freeze-thaw stability.

The effect of freeze-thaw on SARS-CoV-2 viral viability is not well established. We isolated virus from 31 split clinical samples cultured fresh or after a 7- or 17/18-day freeze. We found that freeze-thaw did not significantly affect viral culture isolation.

Pretreatment and Acquired Drug Resistance in Children With Human Immunodeficiency Virus Type 1 in Jos, Nigeria.

We determined pretreatment and acquired human immunodeficiency virus (HIV) drug resistance among children with HIV type 1 (HIV-1) in Jos, Nigeria. The majority (71%) of those who failed first-line antiretroviral therapy were on a nevirapine-containing regimen. The prevalence of pretreatment (48%) and acquired (76%) HIV drug resistance mutations was high in our study.

Chikungunya virus antepartum transmission and abnormal infant outcomes in a cohort of pregnant women in Nigeria.

Objectives: Chikungunya virus (CHIKV), a reemerging global public health concern, which causes acute febrile illness, rash, and arthralgia and may affect both mothers and infants during pregnancy. Mother-to-child transmission (MTCT) of CHIKV in Africa remains understudied.

Methods: Our cohort study screened 1006 pregnant women with a Zika/dengue/CHIKV rapid test at two clinics in Nigeria between 2019 and 2022.

Arbovirus surveillance in pregnant women in north-central Nigeria, 2019-2022.

Background: The adverse impact of Zika (ZIKV), dengue (DENV), and chikungunya (CHIKV) virus infection in pregnancy has been recognized in Latin America and Asia but is not well studied in Africa. Although originally discovered in sub-Saharan Africa the non-specific clinical presentation of arbovirus infection may have hampered our detection of adverse clinical outcomes and outbreak.

Objective: This prospective study of arbovirus infection in pregnant women in north-central Nigeria sought to characterize the prevalence of acute arbovirus infection and determine the impact on pregnancy and infant outcomes.

The HIV-2 proviral landscape is dominated by defective proviruses.

Background: Compared with HIV-1 infection, HIV-2 infection is associated with a slower progression to AIDS. Understanding the persistence of HIV-2 infection might inform the mechanisms responsible for differences in the pathogenicity of HIV-2 versus HIV-1.

Methods: In this study, we analyzed the genetic composition of the proviral reservoir in archived blood samples collected from 13 untreated HIV-2-infected adults from Senegal.

Chikungunya virus antepartum transmission and abnormal infant outcomes in Nigeria.

Chikungunya virus (CHIKV) has become a global public health concern since the reemergence of the Indian Ocean lineage and expansion of the Asian genotype. CHIKV infection causes acute febrile illness, rash, and arthralgia and during pregnancy may affect both mothers and infants. The mother-to-child transmission (MTCT) of CHIKV in Africa remains understudied.

Arbovirus surveillance in pregnant women in north-central Nigeria, 2019-2022.

The adverse impact of Zika (ZIKV), dengue (DENV), and chikungunya (CHIKV) virus infection in pregnancy has been recognized in Latin America and Asia but is not well studied in Africa. In Nigeria, we screened 1006 pregnant women for ZIKV, DENV and CHIKV IgM/IgG by rapid test (2019-2022). Women with acute infection were recruited for prospective study and infants were examined for any abnormalities from delivery through six months.

Achieving a robust mentoring and research capacity program in a LMIC - the BRAINS faculty development model.

Background: A research and training program (RTP) was carried out to build the capacity of faculty and improve the culture of research in the College of Medicine, University of Lagos (CMUL), Nigeria.

Methods: Realist-guided mixed methods evaluation of the BRAINS project was carried out using secondary data generated during the 5-years (2015 - 2020) of project implementation. Capacity building workshops and mentored research activities targeted at faculty in the CMUL were conducted.

High SARS-CoV-2 seroprevalence in Lagos, Nigeria with robust antibody and cellular immune responses.

Background: Early evidence suggested that the impact of the COVID-19 pandemic was less severe in Africa compared to other parts of the world. However, more recent studies indicate higher SARS-CoV-2 infection and COVID-19 mortality rates on the continent than previously documented. Research is needed to better understand SARS-CoV-2 infection and immunity in Africa.

Timeliness of Point-of-Care Viral Load Results Improves Human Immunodeficiency Virus Monitoring in Nigeria.

Background: Human immunodeficiency virus (HIV) viral load (VL) monitoring is critical for antiretroviral therapy (ART) management. Point-of-care (POC) VL testing has been reported to be feasible and preferred over standard-of-care (SOC) testing in many low- and middle-income country settings where rapid results could improve patient outcomes.

Methods: The timeliness of receipt of VL results was evaluated in an open-label, randomized, controlled trial among patients newly initiating ART.

Clinical Outcomes in a Randomized Controlled Trial Comparing Point-of-Care With Standard Human Immunodeficiency Virus (HIV) Viral Load Monitoring in Nigeria.

Background: Point-of-care (POC) viral load (VL) tests provide results within hours, enabling same-day treatment interventions. We assessed treatment outcomes with POC vs standard-of-care (SOC) VL monitoring.

Methods: We implemented a randomized controlled trial at an urban and rural hospital in Nigeria.

Sars-Cov-2 antigen tests predict infectivity based on viral culture: comparison of antigen, PCR viral load, and viral culture testing on a large sample cohort.

Objective: To define the relationship of SARS-CoV-2 antigen, viral load determined by RT-qPCR, and viral culture detection. Presumptively, viral culture can provide a surrogate measure for infectivity of sampled individuals and thereby inform how and where to most appropriately deploy antigen and nucleic acid amplification-based diagnostic testing modalities.

Methods: We compared the antigen testing results from three lateral flow and one microfluidics assay to viral culture detection and viral load determination performed in parallel in up to 189 nasopharyngeal swab samples positive for SARS-CoV-2.

Comparative incidence of adverse drug reaction during the first and subsequent year of antiretroviral therapy in a Nigerian HIV infected Cohort.

Background: Despite close to two decades of antiretroviral therapy (ART) in Nigeria, data on late on-onset ART-associated adverse drug reactions (ADRs) are sparse.

Objectives: To describe early and late-onset ADRs and compare their incidence in an outpatient HIV positive Cohort on ART.

Method: We described the incidence of clinical ADRs identified and documented in an outpatient clinic cohort of HIV-positive patients treated between June 2004 and December 2015 at a tertiary health facility in Nigeria.

Acceptability of and Preferences for Long-Acting Injectable HIV PrEP and Other PrEP Modalities among Sexual Minority Men in Nigeria, Africa.

Sexual minority men (SMM) in Nigeria have been disproportionately affected by HIV. Pre-exposure prophylaxis (PrEP) reduces risk for HIV acquisition among SMM by over 90%. The current study investigated the association between demographics, socioeconomic marginalization, sexual health and willingness to use long-acting injectable (LAI-) PrEP and preferences for other PrEP modalities in a sample of HIV-negative SMM in Nigeria.

Standardization of IgG diagnostic cutoff in Nigerians.

Background And Objectives: Commercial IgG antibody assays have become pivotal in the current diagnosis of chronic pulmonary aspergillosis (CPA). However, diagnostic cutoffs have been found to vary from manufactures' recommendations in different settings. This study aimed to establish the IgG reference range among Nigerians and determine a diagnostic cutoff for CPA.

Derangement of protein S and C4b-binding protein levels as acquired thrombophilia in HIV-infected adult Nigerians.

Background: HIV is a chronic inflammatory state with the production of many acute-phase-reactant proteins. Some of these proteins have procoagulant activities that predispose HIV-infected patients to thrombosis.

Objectives: The aim of the study was to evaluate the effects of HIV infection on the serum levels of C4b-binding protein (C4BP) and protein S as markers of predisposition to thrombosis in HIV-infected adults.

Reported Barriers to Healthcare Access and Service Disruptions Caused by COVID-19 in Burkina Faso, Ethiopia, and Nigeria: A Telephone Survey.

The coronavirus disease 2019 (COVID-19) pandemic may have short-term and long-term impacts on health services across sub-Saharan African countries. A telephone survey in Burkina Faso, Ethiopia, and Nigeria was conducted to assess the effects of the pandemic on healthcare services from the perspectives of healthcare providers (HCPs) and community members. A total of 900 HCPs (300 from each country) and 1,797 adult community members (approximately 600 from each country) participated in the study.

Predictors and Prognosis of Stroke in Jos, North-Central Nigeria.

Background: Stroke is the second leading cause of death worldwide. Stroke mortality has been shown to be higher in blacks in multiracial studies. It is also a very important cause of disability with its attendant deterioration in the quality of life in survivors.

Study of congenital heart defects among neonates in Jos, Nigeria: prevalence and spectrum.

Background: There are few reports of the prevalence of CHD in the neonatal period in sub-Saharan Africa. The only available study in Nigeria was carried out before the widespread availability of echocardiography in the country. We sought to determine the prevalence and spectrum of congenital heart defects (CHD) among neonates in Jos, Nigeria.