CDC Says Vaccine Doses May Be Spaced Further as FDA Eases Stance

Jan. 23, 2021, 5:39 AM

Follow-up doses of the Covid-19 vaccines could be given up to six weeks later if it’s not feasible to get them in the recommended interval, the Centers for Disease Control and Prevention said, with the U.S. Food and Drug Administration also offering some flexibility for “modest delays.”

The guidance posted in a Jan. 21 update to the CDC website said a second dose should be administered as close to the recommended schedule as possible, either three weeks for the Pfizer Inc.-BioNTech SE vaccine or four weeks for the Moderna Inc. shot.

But if it’s impossible to get the...

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