COVID-19 patients develop antibodies no matter the course of the disease, WHO's Maria Van Kerkhove said on Friday."What we understand is 90 to 100 per cent of people who are infected with the virus do develop an antibody response, whether you have mild infection or asymptomatic infection all the way to severe infection.
And we're still learning how long that antibody response lasts, how strong it is, how it relates to immunity from another infection, and how long that lasts," Van Kerkhove, an expert on epidemiology, said at a virtual press briefing.Amid the continuing spread of COVID-19, one of the prominent tasks for epidemiologists is to figure out the duration of immunity to the infection and the probability of reinfection.WHO.