The US calls for a pause on the Johnson & Johnson vaccine after rare clotting cases
Health officials called for pause in use of #JohnsonandJohnson single-dose #coronavirus vaccine after 6 recipients in US developed a rare disorder involving blood clots within ~2 weeks of shot.
~7 million people in the US have received the shots so far, without adverse effects.

https://www.nytimes.com/live/2021/04/13/world/johnson-vaccine-blood-clots