Hepatitis A is a contagious liver infection caused by the hepatitis A virus (HAV). It can spread through contact with contaminated food, water, or objects, or through close contact with an infected person.
The hepatitis A vaccine is the best way to protect yourself from hepatitis A. It is a safe and effective vaccine that is given to children and adults in two doses. The second dose is given 6 to 12 months after the first dose.
How long does the hepatitis A vaccine last?
The hepatitis A vaccine is very effective at preventing hepatitis A infection. However, it is not known exactly how long the vaccine lasts. Some studies have shown that the vaccine can provide protection for at least 20 years, while other studies have shown that it may provide protection for even longer.
The Centers for Disease Control and Prevention (CDC) recommends that all children get the hepatitis A vaccine at 12 to 23 months old. The CDC also recommends that adults get the hepatitis A vaccine if they are traveling to a country with a high risk of hepatitis A, if they are at risk of occupational exposure to HAV, or if they have certain medical conditions, such as chronic liver disease or HIV infection.
Who should get the hepatitis A vaccine?
The CDC recommends that the following people get the hepatitis A vaccine:
- All children aged 12 to 23 months
- Adults who are traveling to a country with a high risk of hepatitis A
- Adults who are at risk of occupational exposure to HAV
- Adults with certain medical conditions, such as chronic liver disease or HIV infection
- Men who have sex with men
- People who use injection drugs
- People who are homeless
How is the hepatitis A vaccine given?
The hepatitis A vaccine is given as an injection into the muscle of the upper arm. The second dose is given 6 to 12 months after the first dose.
What are the side effects of the hepatitis A vaccine?
The hepatitis A vaccine is generally safe and well-tolerated. The most common side effects are mild and go away on their own within a few days. These side effects may include:
- Pain, redness, or swelling at the injection site
- Headache
- Fatigue
- Muscle pain
- Nausea
- Diarrhea
How can I get the hepatitis A vaccine?
The hepatitis A vaccine is available from your doctor, other healthcare providers, and some pharmacies. Most insurance plans cover the cost of the vaccine.
Conclusion
The hepatitis A vaccine is a safe and effective way to protect yourself from hepatitis A infection. It is recommended for all children and adults who are at risk of exposure to HAV. If you are not sure whether or not you need the hepatitis A vaccine, talk to your doctor.