People who don’t get vaccinated against COVID-19 are putting themselves in danger and also are creating a “disproportionate” threat to the health of vaccinated people, even in places with high vaccination rates, says a study published in the Canadian Medical Association Journal. The study by University of Toronto researchers used computer modeling based on the province of Ontario to predict infection rates when unvaccinated and vaccinated people mixed to varying degrees. The researchers worked in factors such as vaccine effectiveness, baseline immunity among the unvaccinated, and infection recovery rates. Unvaccinated people were always at a higher risk of infection, the...
