The European Union Medicines Agency said a warning should be added to the product information of the Johnson & Johnson Covid-19 vaccine that unusual blood clots are a very rare possible side effect, but that the benefits of taking the shot outweigh the risks.
The agency said that healthcare professionals should be on the lookout for the combination of blood clots and low platelet levels.
Copyright ©2020 Dow Jones & Company, Inc. All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8