Which Hepatitis types are most commonly seen in intravenous drug users, and are there vaccines available for these types?

Which Hepatitis types are most commonly seen in intravenous drug users, and are there vaccines available for these types?

• A. Hepatitis A and E
• B. Hepatitis B and C
• C. Hepatitis C and D
• D. Hepatitis A and B

Answer: (C)

Bloodborne transmission is the key factor in this context, so the hepatitis types most commonly seen in intravenous drug users are hepatitis B and hepatitis C. Hepatitis B has a vaccine, which makes prevention straightforward for that type and, by vaccinating against HBV, you also indirectly reduce risk of hepatitis D since D requires HBV to replicate. There is no vaccine for hepatitis C. Hepatitis D doesn’t have a standalone vaccine either; vaccination against HBV is the best way to lower HDV risk. So, among these types, vaccination exists for the one that’s most commonly encountered with this context (HBV), while the others lack a dedicated vaccine.

Bloodborne transmission is the key factor in this context, so the hepatitis types most commonly seen in intravenous drug users are hepatitis B and hepatitis C. Hepatitis B has a vaccine, which makes prevention straightforward for that type and, by vaccinating against HBV, you also indirectly reduce risk of hepatitis D since D requires HBV to replicate. There is no vaccine for hepatitis C. Hepatitis D doesn’t have a standalone vaccine either; vaccination against HBV is the best way to lower HDV risk. So, among these types, vaccination exists for the one that’s most commonly encountered with this context (HBV), while the others lack a dedicated vaccine.