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The vaccine developed by Pfizer and BioNTech is safe and effective, according to the US Food and Drug Administration (FDA).
In a report released Tuesday, the FDA gave the green light to the first vaccines to fight SARS-CoV-2 virus infections in the country, but citizens may face a number of side effects, CNBC reports.
A participant in the Pfizer / BioNTech clinical trials woke up with a cold shortly after taking the second dose: “I felt pain even when I was lying in bed,” he told the US publication.
Other volunteers had headaches and fatigue.
The FDA said that while the side effects are quite common, “there are no risks that would prevent emergency clearance of the vaccine.”
Pfizer and Moderna, another U.S. pharmaceutical giant, said the vaccines they created could cause side effects, similar to COVID-19 symptoms, such as muscle aches, chills and headaches.
“Almost instantly I felt numbness in my hand after the second vaccination, and once I got home, I started to feel dizzy. I experienced a mild form of fever and chills. It was a difficult night,” says Yasir Batalvi, a 24-year-old American. years that he volunteered for the tests carried out by Moderna.
Later, Batalvi called the company doctors, who assured him that the symptoms were normal and that there was no cause for concern, and he made a full recovery the day after the vaccination.
Moderna also reduced the number in the second area, as the number of people with severe symptoms continued to increase.
Although the volunteers reported effects similar to COVID-19 symptoms, it is impossible for them to become infected with coronavirus after inoculation because the Pfizer and Moderna mRNA vaccines do not use a “live” version of the virus.
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