The FDA and CDC issued a joint statement today recommending the pause of 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 those doses, there have been six reported U.S. cases of a rare and severe type of blood clot in individuals who received the vaccine. The CDC and FDA are reviewing data involving these cases.
In such cases, a form of blood clot known as cerebral venous sinus thrombosis (CVST) was seen in combination with low levels of blood platelets (thrombocytopenia), according to the joint statment. All six cases were in women between ages 18 and 48, with symptoms occurring between six and 13 days after vaccination.
Treatment for CVST is different from that which may typically be administered, which is an anticoagulant drug called heparin. In these cases, heparin may be dangerous and alternative treatments are needed,…