For which type of Hepatitis is there currently no vaccination available?

Hepatitis C is the type of hepatitis for which there is currently no vaccine available. Despite advances in treatment and the ability to cure Hepatitis C, no vaccine has been developed due to the virus's complex nature and its ability to mutate rapidly. This makes it challenging to create a vaccine that could provide effective immunity against all strains of Hepatitis C.

In contrast, vaccines do exist for Hepatitis A and Hepatitis B, making prevention through vaccination possible for those types. Hepatitis D, while dependent on the presence of Hepatitis B for its infection, can also be prevented through the vaccination for Hepatitis B. Therefore, Hepatitis C stands out as the only major type of hepatitis without an available vaccine, confirming the choice as the correct answer.