Immunity may last days to years, reports SARS-CoV-2 study
Lancet paper shows there are five types of immune response to the virus, and concludes annual vaccination may be necessary
Antibodies against SARS-CoV-2 are likely to wane at different rates depending on the severity of the infection, with some patients having immunity for a few days and others years, new research suggests.
The researchers followed 164 COVID-19 patients for up to nine months after infection.
