News
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Health & MedicineNo, you can’t hear the difference between sick and healthy coughs
A study shows humans can’t distinguish between the sound of a cough from someone with an infectious disease and someone with a tickle in the throat.
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Health & MedicineHow often do asymptomatic people spread the coronavirus? It’s unclear
A WHO official said people without COVID-19 symptoms rarely spread the virus, but there’s a lot that researchers don’t yet understand.
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Health & MedicineLockdowns may have averted 531 million coronavirus infections
Policies that kept residents at home and closed businesses were largely effective at slowing the pandemic’s spread, two studies suggest.