Study: immunity from SARS-CoV-2 can last for at least six months

Study: immunity from SARS-CoV-2 can last for at least six months, or it may be longer, maybe a matter of years.

Resistance to Covid-19 infection remains for at least five months

Resistance to Covid-19 infection remains for at least five months, investigators reported — and probably lengthier than that.

A sizable English study showed the sheer number of individuals with Covid-19 antibodies declined significantly

A sizable English study showed the sheer number of individuals with Covid-19 antibodies declined significantly throughout the summer, suggesting that having the virus may well not confer long-lasting immunity from future infection.