The UK's Medicines and Healthcare products Regulatory Agency (MHRA) has reported that there are no heart inflammation or other safety concerns with regard to Pfizer's Covid-19 vaccine. The announcement comes after cases of myocarditis were reported in Israel among people who had received Pfizer's vaccine. The MHRA's statement follows similar comments from the US Centers for Disease Control and Prevention that there were no observed links between Pfizer's vaccine and heart inflammation.