Pfizer is now asking the U.S. Food and Drug Administration (FDA) for emergency use authorization (EUA) of its Covid vaccine for kids under 5 years old. 

Pfizer is now asking the U.S. Food and Drug Administration (FDA) for emergency use authorization (EUA) of its Covid vaccine for kids under 5 years old. 

By Chris Kresser, from his newletter Is this a good idea? Under the FDA guidelines, a product must meet the following four criteria to obtain an EUA: There must be an emergency.A vaccine must be at least 30% to 50% effective.The known and potential benefits of the...

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