Hepatitis B is transmitted through which routes?

Hepatitis B is transmitted through which routes?

• A. It is transmitted through blood, semen, and vaginal secretions
• B. It is transmitted by the fecal-oral route
• C. It is transmitted only through casual contact
• D. It is transmitted exclusively by respiratory droplets

Answer: (A)

Hepatitis B spreads through exposure to infected blood and certain body fluids, so the fluids that can carry the virus include blood, semen, and vaginal secretions. This means transmission can occur during sexual contact, through sharing needles or other equipment that breaks the skin, and from mother to child at birth. This combination of routes covers both bloodborne and sexual transmission, and even perinatal transmission, which is why it’s the most accurate description of how Hep B is spread. The other routes don’t apply to Hep B. The fecal-oral route is typical of other hepatitis viruses like Hepatitis A and E and involves contaminated food or water, not blood or sexual fluids. Casual contact—such as hugging, sharing utensils, or being in the same room—does not spread Hep B. Transmission via respiratory droplets is not a mode for Hep B. Vaccination can prevent infection, further strengthening protection against these transmission pathways.

Hepatitis B spreads through exposure to infected blood and certain body fluids, so the fluids that can carry the virus include blood, semen, and vaginal secretions. This means transmission can occur during sexual contact, through sharing needles or other equipment that breaks the skin, and from mother to child at birth. This combination of routes covers both bloodborne and sexual transmission, and even perinatal transmission, which is why it’s the most accurate description of how Hep B is spread.

The other routes don’t apply to Hep B. The fecal-oral route is typical of other hepatitis viruses like Hepatitis A and E and involves contaminated food or water, not blood or sexual fluids. Casual contact—such as hugging, sharing utensils, or being in the same room—does not spread Hep B. Transmission via respiratory droplets is not a mode for Hep B.

Vaccination can prevent infection, further strengthening protection against these transmission pathways.