U.S. pauses J&J vaccine rollout after 6 people of 6.8 million get rare blood clots
AstraZeneca's vaccine has also been linked to the rare clots in Europe and the U.K.
![Johnson & Johnson (Janssen) COVID-19 vaccine being inserted into needle](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/04/041321_eg_jj-suspension_feat.jpg?fit=1030%2C580&ssl=1)
On April 13, U.S. health officials stopped administering the Johnson & Johnson COVID-19 vaccine at federal vaccination sites, and recommended that states follow suit, after reports that six out of 6.8 million people developed deadly blood clots.
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