Three doses of Pfizer's COVID-19 vaccine offer strong protection for children younger than 5, the company announced Monday. Pfizer plans to give the data to U.S. regulators later this week in a step toward letting the littlest kids get the shots.Pfizer says three small doses of its COVID-19 vaccine protect kids under 5 and that it plans to give the data to U.S.
The Food and Drug Administration has begun evaluating data from rival Moderna, which hopes to begin offering two kid-sized shots by summer. Preliminary data suggested the three-dose series is 80% effective in preventing symptomatic COVID-19, the companies said, but they cautioned the calculation is based on just 10 cases diagnosed among study participants by the end of April. The study rules state that at least 21 cases are needed to formally determine effectiveness, and Pfizer promised an update as soon as more data is available.
What's next? FDA vaccine chief Dr. Peter Marks has pledged the agency will "move quickly without sacrificing our standards" in evaluating tot-sized doses from both Pfizer and Moderna.
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