Discover Magazine: How often do COVID-19 patients lose their sense of smell? Two studies are tracking down the data

If you’re getting bored in quarantine, here’s a fun new hobby to try: sniffing stuff in your kitchen. Two international projects are asking ordinary people to rate the scents of household items in order to gather data on one of COVID-19’s more mysterious symptoms: anosmia, the loss of the ability to smell.

It’s still unclear to scientists how widespread anosmia is among COVID-19 patients, which typically causes a fever, dry cough and difficulty breathing. And whether it can be a useful way to track the spread of the disease is still to be determined — leaving researchers eager to gather as much data on the symptom as possible…

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