Patients with omicron variant infections were roughly half as likely to have symptomatic hospital admissions.
The rate of ICU admissions after a positive outpatient test for omicron was 25% the rate for delta infections.
Zero cases of omicron variant infection received mechanical ventilation, compared to 11 patients with delta variant infections, throughout follow-up.
The median duration of hospital stay was 3.4 days shorter for hospitalized cases with omicron variant infections than hospitalized patients with delta variant infections.
Reductions in disease severity associated with Omicron variant infections were evident among both vaccinated and unvaccinated patients, and among those with or without documented prior SARS-CoV-2 infection.
Prior vaccination against COVID-19 was associated with a dose-dependent lower risk of detection of the Delta variant as compared to the Omicron variant; likewise, Delta variant infections were less commonly detected among cases with documented prior SARS-CoV-2 infection.
The data from Kaiser appears to attribute the reduction in IFR to the decreased virulence of omicron at least as much to prior immunity from vaccines or natural infection.
Sunday, January 16, 2022
Two Omicron Studies Are Fantastic News That Should End Mandates and Restrictions
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