The viral infection hepatitis A can be most effectively prevented by which of the following methods?

• A. Using antiviral medications
• B. Increasing vitamin C intake
• C. Taking antibiotics
• D. Receiving the hepatitis A vaccine

Answer: (D)

Verified step by step guidance

1. Understand that hepatitis A is a viral infection primarily transmitted through the fecal-oral route, often via contaminated food or water.
2. Recognize that antiviral medications are generally not used for prevention of hepatitis A; they are more relevant for treatment of some viral infections but not for hepatitis A prevention.
3. Know that increasing vitamin C intake does not prevent viral infections like hepatitis A; it may support general immune health but is not a specific preventive measure.
4. Recall that antibiotics target bacteria, not viruses, so they are ineffective against viral infections such as hepatitis A.
5. Identify that vaccination stimulates the immune system to produce protective antibodies against hepatitis A virus, making the hepatitis A vaccine the most effective preventive method.