Pfizer Shot Is Far Less Effective in 5- to 11-Year-Olds Than in Older Kids, New Data Show
![](https://static01.nyt.com/images/2022/02/28/science/00virus-kids-topart/00virus-kids-topart-mediumThreeByTwo440.jpg)
By BY APOORVA MANDAVILLI AND NOAH WEILAND from NYT Health https://ift.tt/GvVuSoN
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Pfizer Shot Is Far Less Effective in 5- to 11-Year-Olds Than in Older Kids, New Data Show
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