Volunteers who participated in the Pfizer vaccine trials described the side effects: ‘Severe hangover feeling’

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The volunteers, who participated in the tests of the coronavirus vaccine developed by Pfizer, explained the discomfort they experienced after the vaccination. The volunteers stated that they experienced severe weakness after vaccination, which felt like a hangover.

The third vaccine developed by Pfizer and the German company BionTech SE was tested in 6 countries. 43 tie more people attended.

According to the news in the newspaper Mirror, some volunteers headache, fever Y bodily discomfort he complained. Other volunteers compared their condition to “severe drowsiness” after vaccination and drew attention to the fact that the side effects became stronger, especially after the second injection.

One of the volunteers, his situation after the Pfizer vaccine, from the flu shot compared to later side effects.

The study participants were divided into two groups, while some of them were vaccinated and the others were placebo In other words, an empty vaccine was administered, but the volunteers did not know which vaccine had been administered.

Previously, Pfizer and BioNTech announced that the third phase of research for the Kovid-19 vaccine they developed was successful and achieved an efficiency of more than 90 percent.