Hepatitis A inactivated vaccine is necessary for babies. Hepatitis A inactivated vaccine is a national class I vaccine, can effectively prevent hepatitis A infection, it is necessary to give the baby vaccination, especially after the baby two weeks of age, may be in contact with more people, especially after going to kindergarten, need to eat in groups the chances of infection of hepatitis A virus will be bigger, as far as possible to give the baby vaccination. Parents can choose to give the baby according to the baby’s current situation, whether or not to vaccinate against hepatitis A, and usually also pay attention to good care of the baby, before vaccination, try to avoid letting the baby outside the collective meal, easy to lead to hepatitis A virus infection, harmful to the baby’s body.