Could nearly half of those with Covid-19 have no idea they are infected?

Posted by on May 30, 2020 10:00 am
Categories: Global Stories

As studies confirm many infected people show no symptoms, contact tracing and face masks assume even greater importance

When Noopur Raje’s husband fell critically ill with Covid-19 in mid-March, she did not suspect that she too was infected with the virus.

Raje, an oncologist at Massachusetts General Hospital in Boston, had been caring for her sick husband for a week before driving him to an emergency centre with a persistently high fever. But after she herself had a diagnostic PCR test – which looks for traces of the Sars-CoV-2 virus DNA in saliva – she was astounded to find that the result was positive.

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