The interval between two doses of varicella vaccine is age-dependent, with at least three months between doses for 12 years of age and younger, while 13 years of age and older are usually four to eight weeks apart.
Two doses of varicella attenuated vaccine are generally recommended for longer effective protection. The varicella vaccine is suitable for children over 1 year of age with no history of varicella and for immunocompromised people. 1-12 year olds are generally recommended to receive the first dose of vaccine around 1 year of age, while the second dose can be given at 4-6 years of age.
However, if children aged 1 to 12 years miss the above time but have not been infected with chickenpox, they can also choose to receive the vaccine at any time, but the interval between vaccinations should not be less than 3 months. And over the age of 12 years, the interval between two vaccinations is 1~2 months.
It is recommended to consult the local vaccination clinic to understand the corresponding vaccination procedures and adjust the vaccination schedule according to the actual situation.