Before revision: upright=1.3|A hospital receiving more vaccinated COVID-19 patients than unvaccinated ones might suggest that the vaccine is ineffective, but such an imbalance is to be expected within a highly vaccinated population .
After revision: when the vaccine is completely ineffectiveupright=1.3|A hospital receiving more vaccinated COVID-19 patients than unvaccinated ones might suggest that the vaccine is ineffective, but such an imbalance is to be expected within a highly vaccinated population .