The protection a person develops after recovering from COVID-19 shields people against infection as the Omicron virus variant has become dominant in the United States, according to a new study.
The defense, known as natural immunity, was similar to the protection seen among the naturally immune who got at least one dose of a COVID-19 vaccine and people who got three doses of a COVID-19 vaccine and didn’t have natural immunity, researchers with the Cleveland Clinic found. Further, those who had received a primary series of a vaccine and didn’t get a booster, or additional shot, were the most likely to become infected.
