omicron. However, such patients were able to avoid hospitalization with omicron, and death, almost 90% of the time over the same period.
The findings are derived from a meta-analysis of 65 studies from 19 countries. The research may help health officials steer vaccination campaigns and form policy recommendations.
Further, those infected with pre-omicron variants are well protected against older variants but should still take steps to prevent reinfection, according to Stephen Lim, a professor and senior director at the Institute for Health Metrics and Evaluation at the University of Washington, and lead author of the report. “It’s much more important for those individuals who were previously infected with a pre-omicron variant to be up to date on their vaccine schedules," Lim said.
Vaccinations are the best way to gain protection from the virus, particularly for people who are older or who have other health conditions, the researcher added.