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Are the vaccines safe?

In the UK several different types of COVID-19 vaccines will be used. Each vaccine has been tested in tens of thousands of people in several different countries. Their safety and effectiveness has been carefully assessed by the Medicines and Healthcare products Regulatory Agency (MHRA) before being authorised for use.

In the UK more than 34 million people have been vaccinated and this has already prevented many cases and more than ten thousand deaths from COVID-19. The MHRA continuously reviews the safety of vaccines in use, based on all side effects reported by healthcare professionals and the public.

Recently there have been reports of an extremely rare condition involving blood clots and unusual bleeding after vaccination with the AstraZeneca vaccine, which is being carefully reviewed. Because of the high risk of complications and death from COVID-19, the MHRA, the World Health Organization and the European Medicines Agency have concluded that the balance of risk and benefit is very much in favour of vaccination.

For more information on the benefits and risks of  COVID-19 vaccination and blood clots see: 
phw.nhs.wales/patientinfo