Symptomless carriers may be driving Covid-19 spread, experts say

They evaluated patients' symptoms as well as the amount of virus they were carrying - or their viral load - in their nose and throats.

Asymptomatic People with symptomless Covid-19 could be driving the spread of the virus, researchers have said.

Experts said that people who are infected but have no symptoms may have "comparable potential" for spreading the virus as those who have symptoms - including fever, a new and persistent cough and a new loss or change of taste or smell.