WASHINGTON — Injections of Johnson & Johnson’s coronavirus vaccine came to a sudden halt across the country on Tuesday after federal health agencies called for a pause in the vaccine’s use as they examine a rare blood-clotting disorder that emerged in six recipients.

All six were women between the ages of 18 and 48, and all developed the illness within one to three weeks of vaccination. One woman in Virginia died, and a second woman in Nebraska has been hospitalized in critical condition.

https://www.nytimes.com/2021/04/13/us/politics/johnson-johnson-vaccine-blood-clots-fda-cdc.html

“We are recommending a pause in the use of this vaccine out of an abundance of caution,” Dr. Peter Marks, the director of the Food and Drug Administration’s Center for Biologics Evaluation and Research, and Dr. Anne Schuchat, the principal deputy director of the C.D.C., said in a joint statement. “Right now, these adverse events appear to be extremely rare.”

While they framed the move as a recommendation to health practitioners, the impact was immediate. By Tuesday evening, every state, the District of Columbia and Puerto Rico had announced a pause in Johnson & Johnson vaccine injections.

Beyond American shores, Johnson & Johnson said it would delay the rollout of its vaccine in Europe, where several countries were poised to start administering it this week. South Africa, devastated by a more contagious variant of the virus that emerged there, also suspended use of the vaccine. Australia announced it would not purchase any doses.

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