Final answer:
Hepatitis E typically does not have a carrier state because it is self-limiting and generally does not cause chronic infection, with the rare exception in immunosuppressed individuals. Hepatitis D (HDV), on the other hand, requires co-infection with Hepatitis B (HBV) to replicate. The correct option is B.No
Step-by-step explanation:
Hepatitis E does not have a carrier state. The condition is usually self-limiting within two weeks and unlike Hepatitis B and C, it does not lead to chronic infection.
However, an exception exists with genotype 3 of Hepatitis E, which has been associated with chronic infection in immunosuppressed individuals, but this is not considered a typical carrier state as seen with other hepatitis viruses such as HBV and HCV.
Regarding the form of the hepatitis virus that can infect an individual only if they are already infected with another hepatitis virus, the answer is the Hepatitis D virus (HDV). HDV is dependent on the presence of Hepatitis B virus (HBV) for its replication. Therefore, HDV can only propagate in the presence of HBV. The correct option is B.No