High Rates of Occult Hepatitis B Virus Infection in HIV-Positive Individuals Initiating Antiretroviral Therapy in Botswana. Open Forum Infect Dis 2017;4(4):ofx195
Date
10/25/2017Pubmed ID
29062862Pubmed Central ID
PMC5641381DOI
10.1093/ofid/ofx195Scopus ID
2-s2.0-85040341511 (requires institutional sign-in at Scopus site) 32 CitationsAbstract
BACKGROUND: Hepatitis B surface antigen (HBsAg)-negative but hepatitis B virus (HBV) DNA-positive infection-known as occult hepatitis B infection (OBI)-occurs in 1% to >15% of HIV-positive individuals in the United States and South Africa, respectively. However, there are no data on OBI from Botswana, a country known to be hyperendemic for chronic HBV infection and to have a significant HIV burden.
METHODS: Two hundred seventy-two adults enrolled in an HIV treatment study of tenofovir/emtricitabine as the nucleoside backbone who were previously determined to be HBsAg negative were tested for HBV DNA at baseline and 1 year after initiation of highly active antiretroviral therapy (HAART).
RESULTS: HBV DNA was detected in 72 of 272 (26.5%). Six individuals (8.3%) had HBV DNA levels greater than 200 IU/mL, and the highest viral load was 3280 IU/mL. Of 65 participants with OBI evaluated at 12 months after initiating HAART, only 1 (1.5%) had detectable HBV DNA.
CONCLUSIONS: Occult HBV infection is quite common in HIV-infected patients in Botswana, although its impact on the course of HIV disease progression is unknown. The suppression of occult HBV DNA levels by tenofovir/emtricitabine suggests an effective therapeutic option, although the long-term suppressive abilities remain unstudied.
