The specific test that indicates if you are infected is the hepatitis B surface antigen (HBs Ag) test.This antigen covers the surface of the virus and usually there are lots of HBs Ag in your blood when you’re infected.If you were infected at birth, there is a chance that your siblings may also be infected.Sexual partners and close household members should also be tested.Hepatitis B is transmitted through blood and body fluids.It can be spread during unprotected sex, unsafe medical procedures, exposure to blood that enters your body through a cut, or by sharing personal items such as body jewelry or toothbrushes.When a hepatitis B infection lasts longer than six months, it is considered a chronic or long-term infection.Most people with chronic hepatitis B were infected at birth or during early childhood.
To determine if you have an acute or chronic infection, you must be tested for hepatitis B over a six-month period.
If you’re taking tenofovir, ask your doctor about TAF if you’re experiencing kidney problems or bone loss, especially if you’re an older woman.
If you’re taking the antiviral tenofovir (Viread) long-term, ask your doctor about replacing it with TAF (Vemlidy).
Practice safe sex (use a condom), and don’t share personal items that may have trace amounts of blood on them.
Also, you can suggest that your family members get screened for hepatitis B and vaccinated if needed.