U.S. Center for Disease Control and Prevention (CDC) In the research conducted by JAMA and published in the online journal JAMA, the side effects seen in people with the Covid-19 vaccine between December 14, 2020 and February 28, 2021 were examined.
After the first dose Modern 74 percent of those who got the vaccine reported side effects, Pfizer/BioNTech 65.4 percent of those who had the vaccine said they had side effects.
After the second dose, 82 percent of those with the Moderna vaccine and 68.6 percent of those with the Pfizer / BioNTech vaccine reported side effects.
On the other hand, it was underlined that most of the side effects reported by the people who were vaccinated were mild side effects such as pain in the arm.
It was also noted that side effects such as fever and chills were observed more frequently after the second dose of the vaccines.
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