CDC and FDA Recommend Pause br of Johnson & Johnson Vaccine, Due to Rare Cases of Blood Clots.br Six cases of "rare and severe" blood clots have br been reported by people who have received br the Johnson & Johnson COVID vaccine.br Roughly 6.8 million people br have received that version br of the vaccine in the U.S.br A joint statement was released by both the br Centers for Disease Control (CDC) and the br Food and Drug Administration (FDA).br It revealed that all the reported cases of blood clots br occurred in women between the ages of 18 and 48.br and that the instances of clotting emerged between br six and 13 days after they received the vaccine.br CDC will convene a meeting of the Advisory Committee on Immunization Practices (ACIP) on Wednesday to further review these cases and assess their potential significance, Joint Statement of CDC and FDA, via CNN.br FDA will review that analysis as it also investigates these cases. Until that process is complete, we are recommending a pause in the use of this vaccine out of an abundance br of caution, Joint Statement of CDC and FDA, via CNN.br The statement reiterated br that the cases are "extremely rare", br as rare as one case per million doses administered.