People who recovered from COVID-19 have a higher risk of adverse events after vaccination, according to a new study.
Health care workers who had post-infection immunity reported more adverse events after receipt of Pfizer’s COVID-19 vaccine than those without natural immunity, researchers in England said.
Rachael Raw of Newcastle University’s School of Medicine and Health, and her co-authors, said the study revealed a “significant association” between natural immunity and one or more moderate/severe adverse events after doses one, two, and three of Pfizer’s vaccine.
Moderate/severe adverse events include diarrhea, fatigue, and fever.
Dr. Jeffrey Klausner, a clinical professor of medicine at the University of Southern California Keck School of Medicine, said he found the reported adverse events “trivial.”…