Hepatitis B Virus Infection (HBV)
Infection with the hepatitis B virus (HBV). HBV can be transmitted through blood, semen, or other body fluids during sex or injection-drug use. Because HIV and HBV share the same modes of transmission, people infected with HIV are often also coinfected with HBV. HBV infection progresses more rapidly in people coinfected with HIV than in people infected with HBV alone.