I think mommy it depends sa type of immunization. best to answer is si pedia. kasi like japanese encephalitis, booster shot nya is 2nd year ni baby and wala pa study if kelangan magbooster ulit.
hindi po ba mii may age bracket ang bawat vaccines? maybe you can consult your pedia para mas maguide ka niya ng tama at dapat
Depends on what kind of booster mommy. Our kids get to have annual Flu Vacc as early as 3 years old.