Covid-19 Vaccines Have Triggered Severe Allergic Reactions in 29 People in U.S. to Date

Rate of reactions to Covid-19 vaccines is higher than it is for flu shot, but the CDC says it is rare and encourages inoculation

New research could help explain why thousands of Covid-19 survivors are facing debilitating neurological symptoms months after initially getting sick. WSJ breaks down the science behind how the coronavirus affects the brain, and what this could mean for long-haul patients. Illustration: Nick Collingwood/WSJ

At least 29 people in the U.S. have developed severe allergic reactions to Covid-19 vaccines, federal health authorities said Wednesday.

香蕉视频苹果下载The rate is far higher than for the seasonal flu vaccine, U.S. Centers for Disease Control and Prevention officials said. But the severe reactions were rare and didn’t result in any deaths, and they encouraged use of the shots.

香蕉视频苹果下载The 29 cases are as of Jan. 5 and are out of more than 5.3 million doses that have been administered given to date, the CDC said.

The rate of 5.5 cases of anaphylaxis, a life-threatening allergic reaction, for every one million Covid-19 vaccine doses administered to date compares with the rate of 1.3 cases for every one million doses of flu vaccine, according to the CDC.

Still, the cases of anaphylaxis are “exceedingly rare,” said Nancy Messonnier, director of the CDC’s National Center for Immunization and Respiratory Diseases, who is leading the agency’s Covid-19 vaccination efforts.

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