Vaccine Breakthrough Cases-

https://www.medrxiv.org/content/10.1101/2021.08.19.21262139v1.full This study that has been reprinted by BMJ and Yale finds that breakthrough COVID-19 cases are more common amongst “fully vaccinated” individuals. There is also the suggestion that the vaccine may not be effective in any strain beyond the alpha or initial strain. “Breakthrough cases” now at 50% of all cases in MN.