How old is chickenpox vaccine?

Chickenpox vaccine is mainly used in children aged 1 to 2 years and in people at high risk of immune deficiency. Therefore, if you want to get chickenpox vaccine, it is recommended to give it to children aged 1 to 2 years by subcutaneous injection of 0.5 ml in the upper arm. It can be given at the same time as other childhood vaccines, but it must be given in different places. For people over 15 years old, it is necessary to give a second shot of chickenpox vaccine every 6 to 10 weeks. In general, resistance decreases with exposure time, so some patients may consider repeated vaccinations. Of course, it is important to evaluate the need, not all patients need multiple vaccinations.