Hepatitis B is primarily transmitted via which of the following?

Hepatitis B is primarily transmitted via which of the following?

• A. Blood, Semen, Vaginal secretions
• B. Fecal-oral route
• C. Airborne
• D. Contaminated water

Answer: (A)

Hepatitis B spreads through contact with infectious body fluids, especially blood, semen, and vaginal secretions. This means exposure can occur during sex, through sharing needles, or from mother to child at birth, since these fluids can carry the virus even when someone has no symptoms. The virus can survive outside the body for a period, making any small amount of infected fluid a potential source of transmission. Therefore, the description of transmission via blood, semen, and vaginal secretions is the best fit. The other routes listed describe how other infections spread—fecal-oral for hepatitis A, airborne for many respiratory diseases, and contaminated water for certain waterborne illnesses—which do not apply to hepatitis B.

Hepatitis B spreads through contact with infectious body fluids, especially blood, semen, and vaginal secretions. This means exposure can occur during sex, through sharing needles, or from mother to child at birth, since these fluids can carry the virus even when someone has no symptoms. The virus can survive outside the body for a period, making any small amount of infected fluid a potential source of transmission. Therefore, the description of transmission via blood, semen, and vaginal secretions is the best fit. The other routes listed describe how other infections spread—fecal-oral for hepatitis A, airborne for many respiratory diseases, and contaminated water for certain waterborne illnesses—which do not apply to hepatitis B.