Risk of severe disease much lower with Omicron COVID variant than Delta
The risk of hospitalization, intensive care unit (ICU) admission, and death was much lower among more than 9,000 Canadian COVID-19 patients infected with the Omicron variant than among matched Delta patients, according to a study published yesterday in JAMA.
The risk of hospitalization or death with Omicron was 41% of—and the risk of death was one-tenth of—that of Delta.