Dental Assistant Practice Exam

Which virus currently has no vaccine available for prevention?

1. Hepatitis A

2. Hepatitis B

3. Hepatitis C

4. Hepatitis E

The correct answer is: Hepatitis C

Hepatitis C is indeed a virus for which there is currently no vaccine available for prevention. This is largely due to the virus's ability to rapidly mutate and diversify its genetic material, making it difficult to produce a consistent and effective vaccine. Despite significant advancements in antiviral treatments that can cure Hepatitis C, the absence of a vaccine means that primary prevention relies heavily on risk reduction strategies, such as avoiding sharing needles and ensuring safe medical practices. In contrast, Hepatitis A and Hepatitis B both have effective vaccines available that provide strong protection against infection. Hepatitis A can be prevented through vaccination and good hygiene practices, while Hepatitis B vaccination is a routine part of childhood immunization programs in many countries. Hepatitis E also has a vaccine in some countries, although it is not widely available everywhere. Understanding the differences in the vaccination landscape for various hepatitis viruses is important for infection control and public health strategies.