Possible link between J&J's COVID vaccine and blood clots, says EMA There is a "possible link" between J&J's COVID vaccine and very rare cases of blood clots, the EU medicines regulator said. EU regulator finds 'possible link' between Johnson & Johnson Covid vaccine and blood clotsEuropean Medicines Agency said that the benefits of the jab far outweighted the very small risk of blood clots EU regulator finds J&J vaccine has ‘possible link’ to blood clotsEuropean Medicines Agency backs use of single-dose COVID-19 shot, saying its overall benefits outweigh risks. EU regulator backs J&J shot, finds possible link to clotsEurope's drug regulator has found a possible link between Johnson & Johnson's (JNJ.N) COVID-19 vaccine and rare blood clotting issues in adults who received doses in the United States, but backed its overall benefits against any risks. European drug watchdog backs J&J vaccine despite ‘possible link’ to blood clotsEuropean Medicines Agency said ‘overall benefit-risk remains positive’ but determined that a warning about blood clots should be added to the product information. 'Possible link' between Johnson & Johnson vaccine and very rare blood clots - EMAThe EMA said that the overall benefits of the vaccine outweigh the risks of side effects European regulator says Johnson & Johnson vaccine benefits outweigh risksThe European drug regulator said Tuesday that is recommending that a warning be added to the Johnson & Johnson COVID-19 vaccine about a possible link to blood clots, but noted they are "very rare" and the benefits still outweigh the risks. EU regulator says J&J COVID vaccine benefits outweigh risk, but should carry warning labelThe European Medicines Agency (EMA) said it found a possible link between the Johnson & Johnson COVID-19 vaccine and very rare blood clots.