𝐏𝐚𝐬𝐭 𝐂𝐨𝐯𝐢𝐝 𝐈𝐧𝐟𝐞𝐜𝐭𝐢𝐨𝐧𝐬 𝐃𝐨𝐧’𝐭 𝐂𝐨𝐧𝐟𝐞𝐫 𝐒𝐭𝐫𝐨𝐧𝐠 𝐄𝐧𝐨𝐮𝐠𝐡 𝐈𝐦𝐦𝐮𝐧𝐢𝐭𝐲, 𝐒𝐭𝐮𝐝𝐲 𝐅𝐢𝐧𝐝𝐬, 𝐔𝐧𝐝𝐞𝐫𝐥𝐢𝐧𝐢𝐧𝐠 𝐍𝐞𝐞𝐝 𝐅𝐨𝐫 𝐕𝐚𝐜𝐜𝐢𝐧𝐞𝐬 Most people who catch Covid-19 are unlikely to get sick from the disease again, but reinfection is more common than previously thought and older people face an especially high risk, according to a study Wednesday that researchers cast as proof that vaccines are the best form of protection against the coronavirus — even for people who have already been infected. The study, published in the Lancet medical journal, looked at millions of people who took PCR coronavirus tests through Denmark’s nationwide mass-testing initiative last year. Just 0.65% of those who tested positive for the virus during Denmark’s spring surge showed a positive result during the country’s second wave in the fall, suggesting a protection rate against reinfection of 80.5% according to a team of researchers from Statens Serum Institut in Copenhagen. Among people 65 and over, the protection rate was just 47.1%. Both are higher reinfections rate than other studies have found, a commentary published by Lancet noted. The study’s authors say elderly people could face a higher risk of reinfection from the coronavirus because their immune systems are less effective, a dire problem because the elderly are most vulnerable to severe illness and death from Covid-19. --------------------------------------- Cre: Forbes