According to Health Ministry estimates, three in five people in Singapore have been infected with COVID-19. But that still doesn’t give the country herd immunity, as the virus mutates. Data has also shown that protection with three doses of mRNA…

Not long ago we understood that being infected with COVID would bring us a few months of immunity, but that’s all changed thanks to the Omicron variant. The current COVID wave is partly driven by people being reinfected. Dr Norman…

As the pandemic is progressing, a crucial concern is to determine how long people exposed to SARS-CoV-2, will make neutralizing antibodies against this virus. Finding the answer is hypothetically complicated as “variants of concern” are appearing around the world that…

According to an observational study published in The Lancet Respiratory Medicine journal, a past COVID-19 infection does not completely protect young people from reinfection, and vaccination is still necessary to boost immune response and reduce disease transmission. #COVID19 Immunity #Reinfection…

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COVID-19 viral variants, such as the South African Variant (501Y.V2), have spread across the globe creating many questions about whether they can reinfect people who have already recovered from COVID-19, whether treatments such as monoclonal antibodies will work, and whether…