Two other studies looked at the likelihood of contracting covid-19. Both found that rates of the coronavirus were lowest among people who were vaccinated and boosted. In one paper that analyzed more than 10 million infections, the unvaccinated had nearly fivefold the incidence of contracting the coronavirus when omicron was predominant, and those with just two doses were 1.7 times more likely to have covid-19 compared to those who had three. In another, the odds of developing symptomatic infection was 66 percent lower for those with three doses versus those with two.

Source: Washington Post January 25, 2022 05:17 UTC