Kids Covid Vaccine Under 12. Most children can get a 2nd dose from 12 weeks after they had their 1st dose. For children aged 5 to 11 years old, they will be given a less potent formulation and the vial gets an orange cap, instead of purple for adults.
Who's strategic advisory group of experts (sage) has concluded that the pfizer/biontech vaccine is suitable for use by people aged 12 years and above. The second dose can be given up to six weeks after the first dose, if needed. Children under 12 will be offered pfizer vaccines but it is a different formulation from the one that’s given to adults and children aged 12 and above.