It was likely due to disapproval over the inclusion of people age 16 and 17. At least two of the four dissenting votes have confirmed that this was their reason

It was likely due to disapproval over the inclusion of people age 16 and 17. At least two of the four dissenting votes have confirmed that this was their reason and they would otherwise have given their wholehearted approval. [1] As GP points out few in that age group will be in line to get the vaccine early anyway. [1]: https://www.statnews.com/2020/12/11/podcast-pfizer-covid-19-vaccine-debate-details-distribution/ https://www.statnews.com/2020/12/11/podcast-pfizer-covid-19-...