A 2009 study found that 40% of people who survived SARS still experienced chronic fatigue about 3.5 years later, on average.īut while SARS, MERS, and COVID-19 are caused by viruses from the same family, there are key differences among them, as the 2020 study highlights. Researchers have theorized that the virus responsible for COVID-19, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), may cause similar effects to other coronaviruses, such as those that cause severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS).Īccording to a 2020 study, around 30% of people who recovered from severe SARS or MERS had long-term lung abnormalities.
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Once a vaccine is approved, it's closely monitored to continue to make sure it is safe and effective.Share on Pinterest Image credit: Jasmin Merdan/Getty Images.īecause COVID-19 is a new disease, scientists are unsure about the effects months or years after the initial illness. The MHRA makes sure the vaccines meet strict international standards for safety, quality and effectiveness. people with different health conditionsĪll vaccines used in the UK must be approved by the independent Medicines and Healthcare products Regulatory Agency (MHRA).children and young people aged between 12 and 17.people from different ethnic backgrounds.The approved COVID-19 vaccines have been tested on thousands of people in the UK and around the world, including: How COVID-19 vaccines are developed, tested and approvedĬOVID-19 vaccines have to go through several stages of clinical trials before they can be approved for use.Ĭlinical trials are where a vaccine or medicine is tested on volunteers to make sure it works and is safe. Pfizer/BioNTech COVID-19 vaccine patient leaflet on GOV.UK.Oxford/AstraZeneca COVID-19 vaccine patient leaflet on GOV.UK.Moderna COVID-19 vaccine patient leaflet on GOV.UK.For people aged 40 or over and those with other health conditions, the benefits of being vaccinated with the Oxford/AstraZeneca vaccine outweigh any risk of clotting problems.įor people under 40 without other health conditions, it's preferable for you to have the Pfizer/BioNTech or Moderna vaccine instead of the Oxford/AstraZeneca vaccine.įind out more about COVID-19 vaccination and blood clotting on GOV.UKįind out about the side effects for the COVID-19 vaccines currently available in the UK: The COVID-19 vaccine can help stop you getting seriously ill or dying from COVID-19. It's not yet clear why it affects some people. The MHRA is carrying out a detailed review of reports of an extremely rare blood clotting problem affecting a small number of people who had the Oxford/AstraZeneca vaccine. If you have a serious allergic reaction to the 1st dose of a vaccine, you should not have the same vaccine for your 2nd dose. Staff giving the vaccine are trained to deal with allergic reactions and treat them immediately. If you do have a reaction, it usually happens in minutes. Serious allergic reactions to the COVID-19 vaccines are very rare. They may ask what you're allergic to, to make sure you can have the vaccine. Tell healthcare staff before you're vaccinated if you've ever had a serious allergic reaction (including anaphylaxis).
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Most people with allergies (including food or penicillin allergies) can be vaccinated against COVID-19. Report a vaccine side effect on the COVID-19 Yellow Card website Very rare side effects Allergic reactions
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Like all medicines, the COVID-19 vaccines can cause side effects, but not everyone gets them. Find out about COVID-19 vaccine safety and side effects for children aged 12 to 15 on COVID-19 vaccine for children.