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  4. FDA Authorizes Johnson & Johnson Vaccine

The FDA authorized the emergency use of a coronavirus vaccine from Johnson & Johnson, adding the third vaccine for the public. The single-dose vaccine was cleared on February 27, and can be used by people ages 18 and older, one day after an independent FDA advisory committee had endorsed the shot.

The Johnson & Johnson vaccine is unlike the previously authorized vaccines from Pfizer and Moderna, which are given as two-dose regimens. The company has said it will have 4 million doses available upon authorization and can deliver 20 million doses by the end of March. Johnson & Johnson has promised the U.S. government 100 million doses by the end of June.

The CAP has encouraged pathologists and laboratory staff to get their vaccines once they have access.

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