Adverse reactions to hepatitis A vaccine

In our understanding, vaccines are actually effective ways to help us prevent some diseases, so now many babies will get some preventive vaccines regularly. These vaccines are to help them stay healthy and prevent the invasion of some diseases. The hepatitis A vaccine is actually a vaccine that I must get in my daily life. So have you ever learned whether the hepatitis A vaccine will have some adverse reactions?

Doctors recommend that babies be vaccinated in order to ensure their health. Generally, such vaccines have undergone relatively professional research, and the vaccines developed will not have an impact on our health. Of course, if some abnormal phenomena occur after vaccination, you need to go to the hospital for examination in time.

Side effects and adverse reactions of hepatitis A vaccine

Hepatitis A vaccine has become one of the main vaccines for children in my country, and some provinces and cities already provide free hepatitis A vaccine. Currently, the hepatitis A vaccines on the market are mainly divided into two categories: live attenuated hepatitis A vaccine and inactivated vaccine. Among them, the price of live attenuated hepatitis A vaccine is cheaper, but compared with live attenuated vaccine, inactivated vaccine has better stability.

Common side effects of hepatitis A vaccine include: mild pain at the injection site, local redness, swelling and lumps. Less than 5% of hepatitis A vaccine recipients experience systemic reactions, including headache (1 in 20 children), fever, nausea, loss of appetite (1 in 12 children), fatigue (1 in 14 children), etc. The incidence rate in children is slightly lower than that in adults.

Most of these side effects of hepatitis A vaccine are common after the first injection of hepatitis A vaccine, and all of these side effects of hepatitis A vaccine will return to normal within 48 hours, so there is no need to worry too much about the side effects of hepatitis A vaccine.

Experts recommend that after a one-year-old child is vaccinated with the hepatitis A vaccine, the child should be allowed to rest more. When bathing the child, be careful not to let the child catch a cold. When the child is sleeping, pay attention to ventilation in the room. Once the child has symptoms of fever, if the temperature is below 38°C, give the child plenty of water and observe. If the temperature continues to be higher than this, consult a doctor immediately and deal with the condition in a timely manner.

Clinically, 4% of children vaccinated with hepatitis A vaccine have adverse reactions such as fever. Parents do not need to panic. For those who are vaccinated for the first time, they should stay at the scene for half an hour after the injection to prevent the occurrence of immediate allergic reactions. If there are abnormal reactions or delayed allergic reactions within 72 hours after returning home, they should go to the hospital for diagnosis and treatment as soon as possible.

Vaccination itself is to better help yourself prevent diseases and ensure good health, but many people have different physical constitutions. Some people will produce antibodies to vaccines, which will cause adverse reactions. So when facing this problem, we must understand and treat it comprehensively.