Late diagnosis of human immunodeficiency virus infections in high-risk groups in Karachi, Pakistan

Sexual and gender minority health in the Middle East and North Africa Region: A scoping review

Background

Researchers in studies from multiple countries suggest that sexual and gender minority people experience high rates of violence, stigma, and discrimination, as well as mistrust of health care providers and systems. Despite growing evidence related to sexual and gender minority health in North America and Europe, we know little about the health of this population in the Middle East and North Africa.

Objectives

We aimed to comprehensively examine the literature related to the health of sexual and gender minority people in the Middle East and North Africa and to identify research gaps and priorities.

Design

We conducted a scoping review informed by the framework recommended by Arksey and O'Malley and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) tool.

Data sources

We searched the following databases: PubMed (using Medline All on the Ovid platform), PsycINFO (Ovid), CINAHL (Ebsco), and Embase (Ovid). The search strategy combined terms for the geographic region of interest (Middle East and North Africa) and the population of interest (sexual and gender minority). Each was operationalized using multiple search terms and, where available, controlled vocabulary terms.

Review Methods

Research articles were identified and assessed for inclusion using an explicit strategy. Relevant information was extracted and synthesized to present a descriptive summary of existing evidence.

Results

Research designs of the 98 articles we reviewed included quantitative (n = 73), qualitative (n = 20), and mixed methods (n = 5). Most studies were conducted in Lebanon (n = 33), Pakistan (n = 32), and Iran (n = 23) and focused mainly on gender minority individuals (n = 46) and men who have sex with men (n = 32). Five themes emerged from the review: sexual health (52; 53%); mental health (20; 20%); gender identity (17; 17%); violence and discrimination (7; 7%); and experiences with the healthcare system (2; 2%). Although researchers focused on multiple health outcomes in some studies, we included them under the theme most closely aligned with the main objective of the study.

Conclusion

Although our study is limited to few countries in the Middle East and North Africa region, we found that sexual and gender minority individuals face multiple adverse sexual and mental health outcomes and experience high rates of stigma, discrimination, and violence. More research is needed from countries outside of Lebanon, Pakistan, and Iran, including community-based participatory approaches and multi-level intervention development. Nurses and other healthcare providers in the region need training in providing inclusive care for this population.

Phylogenetic and drug- and vaccine-resistance profiles of Hepatitis B Virus among children with HIV co-infection in Pakistan

INTRODUCTION

HIV-1 and hepatitis B virus (HBV) share common routes of transmission and therefore co-infection is common. In 2019, an HIV-1 outbreak that resulted in >1000 children being infected, predominantly through nosocomial transmission, occurred in Sindh, Pakistan. We conducted a phylogenetic and drug resistance analysis of the HBV Reverse Transcriptase (RT) gene in children with HIV-1 and HBV co-infection.

METHODOLOGY

Blood samples were collected from 321 children with HIV who were recruited as part of a study to investigate the HIV-1 outbreak. All samples were tested for HBV surface antigen (HBsAg) using an ELISA assay, and positive samples were used to amplify and sequence the HBV RT gene. The phylogenetic relationship between sequences was analyzed, and drug- and vaccine- resistance mutations in the RT gene were explored.

RESULTS

Of 321 samples, 23% (n = 75) were positive for HBsAg on ELISA. Phylogenetic analysis of the sequences revealed that 63.5% of HBV sequences were sub-genotype D1, while the rest were sub-genotype D2. Cluster analysis revealed grouping of sub-genotype D1 sequences exclusively with Pakistani sequences, while clustering of sub-genotypes D2 predominantly with global sequences. The 236Y mutation associated with resistance to tenofovir was observed in 2.8% of HBV sequences. Additionally, seven vaccine escape mutations were observed, the most common being 128 V.

CONCLUSION

Our study suggests ongoing transmission of HBV D1 and D2 sub-genotypes in the HIV-1 co-infected population, likely nosocomially, given common routes of HVB and HIV-1 transmission. The prevalence of major HBV drug- and vaccine-resistant mutations remains low. Surveillance for further transmissions and the possible emergence of major drug- or vaccine-resistant variants is required.

Phylogenetic and Drug-Resistance Analysis of HIV-1 Sequences From an Extensive Paediatric HIV-1 Outbreak in Larkana, Pakistan

Introduction

In April 2019, an HIV-1 outbreak among children occurred in Larkana, Pakistan, affecting more than a thousand children. It was assumed that the outbreak originated from a single source, namely a doctor at a private health facility. In this study, we performed subtype distribution, phylogenetic and drug-resistance analysis of HIV-1 sequences from 2019 outbreak in Larkana, Pakistan.

Methods

A total of 401 blood samples were collected between April–June 2019, from children infected with HIV-1 aged 0–15 years recruited into a case-control study to investigate the risk factors for HIV-1 transmission. Partial HIV-1 pol sequences were generated from 344 blood plasma samples to determine HIV-1 subtype and drug resistance mutations (DRM). Maximum-likelihood phylogenetics based on outbreak and reference sequences was used to identify transmission clusters and assess the relationship between outbreak and key population sequences between and within the determined clusters. Bayesian analysis was employed to identify the time to the most recent common recent ancestor (tMRCA) of the main Pakistani clusters.

Results

The HIV-1 circulating recombinant form (CRF) 02_AG and subtype A1 were most common among the outbreak sequences. Of the treatment-naïve participants, the two most common mutations were RT: E138A (8%) and RT: K219Q (8%). Four supported clusters within the outbreak were identified, and the median tMRCAs of the Larkana outbreak sequences were estimated to 2016 for both the CRF02_AG and the subtype A1 clusters. Furthermore, outbreak sequences exhibited no phylogenetic mixing with sequences from other high-risk groups of Pakistan.

Conclusion

The presence of multiple clusters indicated a multi-source outbreak, rather than a single source outbreak from a single health practitioner as previously suggested. The multiple introductions were likely a consequence of ongoing transmission within the high-risk groups of Larkana, and it is possible that the so-called Larkana strain was introduced into the general population through poor infection prevention control practices in healthcare settings. The study highlights the need to scale up HIV-1 prevention programmes among key population groups and improving infection prevention control in Pakistan.