Millions of kids’ coronavirus shots ‘ready’ to go; initial doses to be shared on a population basis

While overall supply may be sufficient, Hannan said, a key challenge will be ensuring the children’s vaccine can be shared with all the providers who may want to administer it. Pfizer’s packages contain 10 vials, each containing 10 doses, for a total of 100 doses. The size of those packages will make it hard to share the vaccine with many providers, she said.