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At the same time, experts have questioned the low efficacy numbers against infection. 

During the omicron surge, two doses of the vaccine were roughly 51% effective against COVID-19 infection, including asymptomatic and mild infections, for children 6 months to 2 years old, and 37% effective among kids 2 years to 6 years old.

https://abcnews.go.com/Health/fda-review...d=84380354