May 28, 2021 ~MedPage Today ~ By Jeffrey Klausner
Op-Ed: Quit Ignoring Natural COVID Immunity
— Antibody testing and proof of prior infection can allow more people to return to normal
Epidemiologists estimate over 160 million people worldwide have recovered from COVID-19. Those who have recovered have an astonishingly low frequency of repeat infection, disease, or death. That immunity from prior infection protects many people now where vaccines are not yet available.
Earlier this month the World Health Organization released a scientific update stating that most people who have recovered from COVID-19 develop a strong protective immune response. Importantly, they summarize that within 4 weeks of infection, 90% to 99% of people who recover from COVID-19 develop detectable neutralizing antibodies. Furthermore, they conclude — given the limited amount of time to observe cases — that the immune response remains strong for at least 6 to 8 months after infection.