Johnson & JohnsonThe FDA and CDC issued a joint statement today recommending the pause in the administration of the Johnson & Johnson COVID-19 vaccine.

As of yesterday, more than 6.8 million doses of the J&J single-dose vaccine had been administered in the U.S. Among recipients of those doses, six cases of a rare and severe type of blood clot have been reported. The CDC and FDA are reviewing data involving these cases.

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