Science World: How COVID-19 Affects Taste and Smell

One of the most mysterious symptoms of Covid-19 is the loss of taste and smell. Not all people who come down with the illness experience this phenomenon. But those who do can lose their ability to taste and smell for months at a time. Some regain these senses only to find that their perception of good and bad tastes and smells has been reversed.

Scientists at the Monell Chemical Senses Center in Philadelphia, Pennsylvania estimate that 37 percent of people had some form of taste loss after a coronavirus infection. To learn more, Science World spoke to Hong Wang, a molecular biologist at the Monell Center. She discussed what scientists know—and are still trying to uncover—about how Covid-19 negatively affects our senses.

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