Hepatitis A Inactivated Vaccine: One Dose or Two Doses?

The hepatitis A inactivated vaccine typically requires two doses, while the attenuated live vaccine usually requires just one. For both types of vaccines, the initial dose is generally administered at around 18 months of age. If an inactivated vaccine is used, the second dose should be given at least six months after the first, typically between 24 and 30 months of age. This schedule ensures optimal immune response and long-term protection against the virus.

Who Should Receive the Hepatitis A Vaccine?

Individuals who are at higher risk of contracting hepatitis A, such as healthcare workers, caregivers, or those frequently exposed to contaminated environments, should also receive the vaccine. This includes people who come into contact with the blood, bodily fluids, secretions, or feces of infected individuals. Vaccination is a crucial preventive measure for these groups to reduce the risk of infection and transmission.

Potential Side Effects After Hepatitis A Vaccination

Like many vaccines, the hepatitis A vaccine can cause mild side effects in some individuals. Common reactions include low-grade fever, fatigue, and general malaise. Some people may also experience allergic reactions, such as rashes or itching at the injection site. These symptoms are typically mild and resolve on their own within one to three days without medical intervention.

When to Seek Medical Attention

If symptoms persist or worsen after vaccination, it is important to seek medical advice promptly. Signs such as a rising fever, significant swelling, redness, or pain at the injection site may indicate a more serious reaction. In such cases, timely consultation with a healthcare professional is recommended to ensure proper evaluation and care.