Which of the following is a primary preventive measure for Hepatitis A in the general population?

• A. Immune Globulin
• B. Vaccination
• C. Good hygiene
• D. Clean water systems, avoidance of food contamination

Answer: (B)

Vaccination is the primary way to prevent Hepatitis A before people are exposed because it creates active, long-lasting protection in individuals and reduces transmission across the community. By teaching the immune system to recognize the virus, the vaccine prevents infection if exposure occurs, which is especially important for the general population. Immune globulin, on the other hand, provides immediate but temporary protection and is used mainly for post-exposure prophylaxis or specific travel needs, not as a routine, long-term safeguard for everyone. While good hygiene and clean water reduce risk by limiting transmission, they do not confer immunity the way vaccination does, making vaccination the most effective overall preventive measure for the general population.