The U.S. is recommending a pause in administration of the single-dose Johnson & Johnson COVID-19 vaccine to investigate reports of potentially dangerous blood clots.

In a joint statement Tuesday, the Centers for Disease Control and Prevention and the Food and Drug Administration said they were investigating clots in six women that occurred in the days after vaccination. The clots were observed along with reduced platelet counts - making the usual treatment for blood clots, the blood thinner heparin, potentially dangerous.

source: abc7chicago.com