RIO DE JANEIRO, BRAZIL - Many viruses continue to spread even long after the infected person's symptoms have subsided - cough or fever are not the only indicators that a person can infect others with a virus.
This is the case with the new coronavirus, Sars-Cov-2, which can continue to be contagious even after the symptoms have subsided, according to research. But for how long?
And in the case of people who never had symptoms or in whom the symptoms were so mild that went unnoticed?
Since Sars-Cov-2 was detected in China last December . . .