Antibodies against the novel Coronavirus wane at different rates, lasting for mere days in some individuals, while persisting in others for decades, according to a new study which says COVID-19 severity could be a deciding factor in having longer-lasting protection against reinfection.

The research, published in The Lancet Microbe journal, noted that recovered patients with low levels of neutralising antibodies may still be protected from reinfection if they have robust immunity in the form of the body’s T cells.