Federal health agencies on Tuesday called for an immediate pause in use of Johnson & Johnson’s single-dose coronavirus vaccine after six recipients in the United States developed a rare disorder involving blood clots within about two weeks of vaccination.
"The CDC and the FDA are taking these concerns about blood clots and the J&J vaccine seriously and are diligently assembling data," the official said.
All six recipients were women between the ages of 18 and 48. One woman died and a second woman in Nebraska has been hospitalized in critical condition, officials briefed on the cases said.
Johnson & Johnson issued a statement on Tuesday noting that the company has decided to "proactively delay the rollout" of its vaccine in Europe.
"We have been working closely with medical experts and health authorities, and we strongly support the open communication of this information to healthcare professionals and the public," the statement said in part.
If you've received the Johnson & Johnson shot, if you develop severe headache, abdominal pain, leg pain or shortness of breath within three weeks after vaccination contact your health care provider.
The statement also noted that these adverse events "appear to be extremely rare."