The Hepatitis A vaccine is a safe and effective immunization that protects against the Hepatitis A virus, which can cause liver disease. This vaccine is typically given in two doses, with the first dose providing immediate protection and the second dose enhancing long-term immunity. The vaccine is recommended for various groups, including travelers to areas where Hepatitis A is common, individuals with chronic liver disease, and those working in certain healthcare settings. It is administered through an injection, and side effects are usually mild, such as soreness at the injection site or a low-grade fever.