Dismantling Barriers to Hepatitis B and Delta Screening, Prevention, and Linkage to Care among the PWUD Community in Philadelphia.

The prevalence of hepatitis B and delta viruses (HBV/HDV) among people who use drugs (PWUD) remains largely unknown. In the context of one Philadelphia-based harm reduction organization (HRO), this study aimed to assess HBV/HDV prevalence and facilitate linkage to care. Participants completed a demographic HBV/HDV risk factor survey and were screened for HBV and reflexively for HDV if positive for HBV surface antigen or isolated core antibody. Fisher's exact tests and regression were used to understand relationships between risks and HBV blood markers. Of the 498 participants, 126 (25.3%) did not have hepatitis B immunity, 52.6% had been vaccinated against HBV, and 17.9% had recovered from a past infection. Eleven (2.2%) participants tested positive for isolated HBV core antibody, 10 (2.0%) for HBV surface antigen, and one (0.2%) for HDV antibody. History of incarceration was associated with current HBV infection, while transactional sex and experience of homelessness were predictive of previous exposure. This study found high rates of current and past HBV infection, and a 10% HBV/HDV co-infection rate. Despite availability of vaccine, one quarter of participants remained vulnerable to infection. Findings demonstrate the need to improve low-threshold HBV/HDV screening, vaccination, and linkage to care among PWUD. The study also identified gaps in the HBV/HDV care cascade, including lack of point-of-care diagnostics and lack of support for HROs to provide HBV services.

A Health Belief Model Examination of Factors Related to Hepatitis B Screening Among African Immigrants in Philadelphia.

Chronic hepatitis B infection is a leading cause of liver cancer worldwide. In the USA, African immigrants (AI) have high hepatitis B virus (HBV) infection rates but low HBV knowledge and screening rates. Research about HBV among AI living in Philadelphia is particularly limited. This study aims to assess barriers to and factors influencing HBV screening in the Philadelphia AI population. African and Caribbean-born adults in Greater Philadelphia were recruited for phone interviews at community health fairs hosted by the African Cultural Alliance of North America (ACANA) and the African Family Health Organization (AFAHO) in partnership with the Hepatitis B Foundation. Seventeen interviews were recorded, transcribed, and coded independently by two members of the research team using NVivo software. Themes and subthemes were created by analysis of the codes and arranged under Health Belief Model (HBM) concepts. Major perceived barriers included lack of HBV knowledge and awareness and cultural challenges related to health care access, preventive care, fear, and stigma. Participants recommended using community organizations and programs to spread awareness about HBV and serve as cues to action. In-person education was emphasized due to lack of access to and knowledge of technology such as Zoom. While HBV educational sessions have been implemented in this population, they have not been consistent or far-reaching. The results of this study can contribute to the implementation of a comprehensive AI-specific HBV education and screening program through partnerships with community organizations to ensure that all high-risk individuals in the Philadelphia area are screened.