There is a “possible link” between Johnson & Johnson’s Covid-19 vaccine and very rare blood clots, the European medicines regulator has said.But the European Medicines Agency (EMA) concluded the overall benefits of the vaccine “outweigh the risks of side effects”.The Janssen vaccine is yet to be approved for use in the UK.The safety committee of the EMA concluded that unusual blood clots with low blood platelets should be listed as a “very rare” side effect of the vaccine.
