Vaccine effective in Minnesota, but omicron presents a challenge
The second week of January saw more COVID-19 deaths among the vaccinated, but risks remained higher in those who were not
February 15, 2022
More COVID-19 deaths were reported in vaccinated than unvaccinated Minnesotans in the second week of January, but risks remained higher in people who hadn't received their shots.
Unvaccinated Minnesotans made up only 47% of the 163 COVID-19 deaths in the week ending Jan. 15, but they remained at greater risk considering they make up less than 23% of the state's adult population, according to Monday's weekly state report on breakthrough COVID-19 cases.
The data match a national study released Friday, and co-authored by researchers from Bloomington-based HealthPartners, that observed a decline in vaccine effectiveness against the omicron variant. Effectiveness in preventing hospitalizations during the omicron wave declined from 91% in people two months after they received booster shots to 78% four months after they received those third COVID-19 vaccine shots, the study found.