NYU Langone Health
Persons with chronic hepatitis B (HBV) infection and active viremia are infectious and may transmit virus to others through blood/body fluid exposure. Immune tolerant treatment naive persons with hepatitis B infection express anxiety regarding disclosure of their infection status and significant fear of transmission to their partners leading to social isolation and impact on their personal lives. This study will provide data correlating serum and body fluid viral levels in persons with chronic hepatitis B infection not on therapy and those with viral suppression on long-term anti-retroviral therapy (ART) that may support the concept of "Undetectable=Untransmissible" (U=U) in patients with chronic hepatitis B.
Inclusion Criteria: Infected Individuals * Individuals above 18 years and less than 65 years with chronic hepatitis B infection * Included according to undermentioned three arms: * Infected, On-treatment arm: subjects being treated with TAF/TDF for a minimum of 2 years with sustained viral suppression indicating adherence to therapy * Infected, Untreated control arm: Immune tolerant subjects; 15 with high viral load (\>10\^6) and 5 with low viral load (\<10\^6) * Uninfected Assay Validation controls: 10 subjects with history of prior infection who have convalesced i.e., have lost surf…
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