Naturally Immune People at Little Risk of Reinfection, Severe Disease From COVID-19: Study

… a cohort of over 353,000 people

… contracted COVID-19 … between Feb. 28, 2020, and April 28, 2021

… excluding approximately 87,500 people with a vaccination

… Just 1,304 reinfections were identified …  0.4 percent of people

… odds of severe disease were 0.1 times that of primary infection

… No cases of death were recorded among those who got infected a second time

… for a person who has already had a primary infection, the risk of having a severe reinfection is only approximately 1% of the risk of a previously uninfected person

… people who have recovered from COVID-19 enjoy high levels of immunity against reinfection, and even higher protection against severe disease and death


              New England Journal of  Medicine