Hepatitis A inactivated vaccine

There are many types of vaccines. When choosing a vaccine, you need to have a good understanding of it so that it will not harm your own health. The inactivated hepatitis A vaccine is a very common one. There are also some precautions after use. If any abnormalities occur after use, you need to go to the hospital for examination to see what is going on.

So what are the adverse reactions of the inactivated hepatitis A vaccine? The following is a detailed introduction so that you can have a comprehensive understanding of such problems and know what to do best when they occur, which is conducive to the improvement of human body problems.

Inactivated Hepatitis A Vaccine:

1 Adverse reactions

Symptoms are mild and last no longer than 24 hours. Injection site pain, nodules, redness and swelling, systemic reactions include headache, fatigue, fever, nausea and decreased appetite.

2 Interaction

Combined use with immunoglobulin does not affect the seroconversion rate. However, HAV antibody titers were relatively low compared with vaccine alone.

3 Usage and Dosage

0, 1, 6-month program: For adolescents and adults over 16 years old, the basic immunization is 2 times, 1 adult dose each time, with an interval of 1 month. 6-12 months after the basic immunization, a booster immunization with 1 adult dose is given. For children aged 1-16 years and below, the basic immunization is 2 times, 1 child dose each time, with an interval of 1 month. 6-12 months after the basic immunization, a booster immunization with 1 child dose is given to ensure that the antibody titer is maintained for a long time. 0.6-month program: The basic immunization for adolescents and adults over 16 years old is 2 adult doses, and booster immunization can be performed between 6-12 months. The basic immunization for children under 1-16 years old is 2 child doses, and booster immunization can be performed 6-12 months after the basic immunization to ensure that the antibody titer is maintained for a long time.

4. Notes

It is contraindicated for patients with acute or severe febrile illness. Hemodialysis patients or those with impaired immune systems may not produce sufficient antibody titers after basic immunization, so another dose of vaccine is needed. The recipient should be observed for 30 minutes after use of the vaccine because allergic reactions may occur. Patients with thrombocytopenia or bleeding disorders may experience bleeding after intramuscular injection, so it should be used with caution. Use with caution in pregnant and lactating women.

Through the above introduction, we have an understanding of the inactivated hepatitis A vaccine. The amount of its use is also explained above, and some of its precautions are also explained. This point also needs to be understood so that when choosing it, you can proceed with confidence and it will not cause any harm to your health.