The risk of developing blood clots after being infected with Sars-Cov-2 is greater than if you receive vaccines from AstraZeneca or Pfizer. The study published in
scientific journal BMJ analyzed data from 29 million people in England – some inoculated with the AstraZeneca and Pfizer vaccines and others who had been infected with the new coronavirus.
The information was cross-checked with rates of hospital admissions and deaths due to blood clots, as well as other blood problems, 28 days after a positive test or receiving the first dose of vaccine.
Blood clots, low platelet levels and other vascular problems are some of the side effects of Covid-19 vaccines, but according to this research they are more frequent in people who have been infected with SARS-CoV-2 . Furthermore, the period in which these problems could arise post-exposure was also longer for infections than for vaccinated people.
“People should be aware of the increase in these risks after vaccination and go to the doctor quickly if they have any of these symptoms, but also that this risk is considerably higher, for a longer period of time, if they get sick,” warned the coordinator of the study and professor at Oxford University, Julia Hippisley-Cox.
In this evaluation cited by jornal The Gardian, the team considered everyone over the age of 16 who had had a dose of Oxford/AstraZeneca or Pfizer/BioNTech vaccines between December 1, 2020 and April 24, 2021 (according to available data). Among patients with severe blood and vascular manifestations after vaccination or infection, those who had already had a similar situation in the last two years were excluded.
Covid-19 has caused at least 4,472,486 deaths worldwide, out of more than 214.5 million infections with the new coronavirus recorded since the start of the pandemic, according to the latest report by the Agence France-Presse.
The respiratory disease is caused by the SARS-CoV-2 coronavirus, detected in late 2019 in Wuhan, a city in central China, and currently with variants identified in countries such as the United Kingdom, India, South Africa, Brazil or Peru.