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TORONTO A preliminary study involving 813 Quebec health-care workers who tested positive for COVID-19 has shown that people with the coronavirus could lose their sense of smell and taste for up to five months. The study was conducted through an online questionnaire where participants were asked to rate their sense of taste and smell on a scale of zero to 10, with higher numbers indicating a greater sense of taste or smell. Of the respondents, 580 indicated that they had âcompromised sense of smellâ during the initial stages of the illness. Five months later, 297 said they had not regained their sense of smell and 134 had a persistent loss of smell after being assessed with a home test.
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Sense of smell can be altered for 5 months or more after acute SARS-CoV-2 infection, Canadian researchers reported.
Nearly one in five healthcare workers who had a compromised sense of smell when they first were infected reported persistent olfactory changes 150 days later, said Johannes Frasnelli, MD, of the University of Quebec at Trois-Rivieres, and colleagues, in a preliminary report released in advance of the American Academy of Neurology annual meeting.
The findings are based on 813 Quebec healthcare workers who tested positive for SARS-CoV-and completed online questionnaires and home chemosensory tests an average of 5 months after diagnosis. Most participants (84%) were women.
Loss of taste and smell due to COVID-19 could last up to five months, new study suggests
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TORONTO, Ontario (CTV News) A preliminary study involving 813 Quebec health-care workers who tested positive for COVID-19 has shown that people with the coronavirus could lose their sense of smell and taste for up to five months.
The study was conducted through an online questionnaire where participants were asked to rate their sense of taste and smell on a scale of zero to 10, with higher numbers indicating a greater sense of taste or smell.
Of the respondents, 580 indicated that they had “compromised sense of smell” during the initial stages of the illness. Five months later, 297 said they had not regained their sense of smell and 134 had a “persistent loss of smell” after being assessed with a home test.