Teenagers in US now able to get COVID-19 vaccines Timeline for more vaccines BioNTech and its partner Pfizer have already applied for authorization for the vaccine for 12 to 15 year-olds in the United States. Teenagers over the age of 16 can already take the two-shot vaccine that is available for adults. Results from clinical tests should be available on a vaccine for children aged 5 to 12 by July. Figures for a jab for younger children, aged 6 months and upwards, should be on hand by September. "If all goes well, as soon as the data is evaluated, we will be able to submit the application for approval of the vaccine for all children in the respective age group in different countries," he said.