New CDC data shows COVID-19 booster shots produce side effects similar to second dose of vaccine


The most common side effects of COVID-19 booster shots are similar to those experienced after the second dose – injection site pain, fatigue and headaches, according to data released Tuesday by the Centers for Disease Control and Prevention the United States.

Overall, the side effects are mostly mild, the CDC study shows. Recipients start to experience side effects the day after the injection.

Nearly 2.8 million people have been recalled since the U.S. Food and Drug Administration authorized additional doses of Pfizer-BioNTech and Moderna vaccines for people with weakened immune systems in August.

This number will increase dramatically now that the The CDC also recommended a reminder for people who have received the Pfizer vaccine and are 65 years of age or older, long-term care residents or at higher risk of COVID-19 due to underlying health issues or their occupations .

The CDC-led study looked at data from 22,191 people who received a recall and answered questions about the CDC’s smartphone app, v-safe. Almost all of them received the same booster as their initial doses.

Arm pain was slightly more common after the third injection, but headaches or fatigue were slightly less common, the researchers reported. About 28% said they were unable to carry out normal daily activities due to the side effects.

“We are very comfortable with the safety of these vaccines. They have been given to millions and millions and millions and millions of people,” said Dr. Helen Keipp Talbot, CDC advisory board member on vaccination practices. NBC News.

“But that doesn’t mean we’re going to stop monitoring and researching” adverse events, she added. “We will always be careful and careful.”

The Philadelphia Department of Public Health began giving booster doses of the Pfizer vaccine to eligible people on Saturday. Existing COVID-19 vaccine suppliers administer Pfizer booster. Residents can find the nearest immunization clinic by calling (215) 685-5488 or by visiting city ​​website

In August, the Biden administration announced plans to offer booster shots as the highly contagious delta variant increased across the country and cases of COVID-19 among those vaccinated increased.

While vaccines are still very effective in preventing serious illness, hospitalizations, and death, previous CDC studies show cases of COVID-19 are more common in people vaccinated since the arrival of the delta variant.

Some scientists have argued that most people do not need COVID-19 boosters because of their effectiveness in preventing serious illness. The World Health Organization has urged countries not to offer boosters, highlighting an increased need for vaccines in areas with limited access.

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