Breakthrough Events, March 2023

Dave’s notes:

1. This post is an update to the Covid vaccination breakthrough data table and charts for the overall Minnesota population published on 2/11/2023 here: https://healthy-skeptic.com/2023/02/11/breakthrough-events-march-2023/. This week’s update adds data through the week starting 2/05/2023, published by the Minnesota Department of Health (MDH) on 3/02/2023. There are very minor revisions to the past weeks’ data, as is typical.
2. The breakthrough data files are available from MDH here, https://www.health.state.mn.us/diseases/coronavirus/stats/vbt.html , in the notes under the graphic images.
3. Fig. 1, Cases, Hospitalizations, and Deaths Per Week: This table displays the total cases, hospital admissions, and deaths that occurred each week among the unvaccinated, vaccinated but not boosted, and vaccinated and boosted populations. Cases and hospitalizations have rebounded, after decreasing substantially in early January. The decrease in deaths appears to be real, also reflected in the Year to Year comparison charts published recently here: https://healthy-skeptic.com/2023/03/06/year-over-year-charts-march-2023/
4. Fig. 2 through 4: Charts displaying the cases, hospital admissions, and deaths over time, using the same data in Fig. 1. The decrease in hospitalizations in early January is especially dramatic.
5. MDH defines the fully vaccinated (what we have termed vaccinated but not boosted) as those who have not received a booster after completing their primary vaccination series, and had been vaccinated at least 14 days prior to testing positive.
6. MDH defines the boosted as those who have received any additional vaccination shots after completing their primary vaccination series, and also received the booster at least 14 days prior to testing positive. In addition, booster doses were only counted after 8/13/2021, the date the CDC first began recommending booster shots.