COVID-19 Vaccine Reduces Severity, Length, Viral Load for Those Who Still Get Infected.

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People who contract COVID-19 even after vaccination are likely to have a lower viral load, experience a shorter infection time and have milder symptoms than those who are unvaccinated, according to research that includes data from ongoing University of Arizona Health Sciences studies.

"If you get vaccinated, about 90% of the time you're not going to get COVID-19," said Dr. Jeff Burgess, associate dean for research and professor at the Mel and Enid Zuckerman College of Public Health and principal investigator of the Arizona Healthcare, Emergency Response, and Other Essential Workers Surveillance study, otherwise know as AZ HEROES. "Even if you do get it, there will be less of the virus in you and your illness is likely to be much milder."

While the COVID-19 vaccines are proving to be highly effective in preventing COVID-19 infection, no vaccine is 100% effective, and breakthrough infections do occur. Among 3,975 participants in two studies, SARS-CoV-2 infections were identified in five participants who were fully vaccinated and 11 who were partially vaccinated, as well as in 156 unvaccinated participants. Approximately half of the participants were from Arizona study sites.

news.arizona.edu/story/covi...

New England Journal of Medicine. Study Paper:

nejm.org/doi/10.1056/NEJMoa...