Rapid sniff test for COVID-19 that checks if people have lost sense of smell was 95% accurate and could be used as a screening tool for disease
A new pilot study looked at a rapid smell test using a scratch and sniff label with a single scent called SAFER Card Participants then chose from one of eight options - banana, blueberry, floral, grape, lemon, mint, unsure, or no scent - and then got a COVID-19 test Among the 16 people who tested positive, 12 of them - or 75%- failed the smell test compared to seven of the 147 - or 4.8% - who tested negative This means SAFER Card leads to about one in four false negatives but very few false positives, and could be used a screening tool By Mary Kekatos Acting U.S. Health Editor For Dailymail.Com
Published: 23:36 BST, 15 July 2021 | Updated: 23:37 BST, 15 July 2021
A rapid smell test is showing promise as a new screening tool for COVID-19 in a pilot study.
Researchers found that a sniff card with one of eight different smells had a sensitivity rate of 75 percent and a specificity rate of 95.2 percent compared to gold standard PCR nose swab tests.
This means the test, called SAFER Card, would show about one in four false negatives but very few false positives.
The team - from the University of California, San Diego and Southern Methodist University in Texas - says the test is faster and cheaper than other screenings tool and could be an easy way for schools and businesses to determine which people should get further testing.
A new pilot study tested a rapid smell test using a scratch and sniff label called SAFER Card. Participants sniffed a single scent, chose one of eight options and then took a nasal swab test for COVID-19
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