Rare blood clots tied to J&J’s COVID-19 shot are similar to issues with AstraZeneca’s vaccine, FDA official says
April 13, 2021 at 17:44 PM EDT
Federal health officials say the ultra-rare blood clots reported in six people who received Johnson & Johnson’s COVID-19 vaccine are similar to blood clots detected in a very small number of people in Europe who were immunized with AstraZeneca’s shot.