Wearing a mask but not covering your nose? You’re doing it all wrong | The Star

October 3, 2020

anosmia & sniff tests

https://www.thestar.com/news/canada/2020/09/26/wearing-a-mask-but-not-covering-your-nose-youre-doing-it-all-wrong.html

QT:{{”
While it’s well established that the primary way people get infected with COVID-19 is from inhaling aerosol droplets, Kennedy said there is emerging evidence it’s “a lot easier” for the virus to get a grip on our internal system when it enters through the nasal passage versus the mouth.

That’s because the nasal passage tissue is rich in cells that have a certain receptor the virus attaches to.

“There’s more cells in the upper airway in the nasal passages that have high levels of receptor expression,” Kennedy explained. “So the virus is more likely to find the cell to infect, and it’s easier for the virus to infect cells sort of in the upper airway in the nasal passages than it is down in the lungs.”
….
It’s evident the nose and our sense of smell hold many answers to understanding COVID-19. It’s now clear a loss of sense of smell, known as anosmia, is one of the most common symptoms of COVID-19. Valentina Parma, chair of the Global Consortium for Chemosensory Research, said her organization’s data seems to show that anosmia is a better indicator of COVID-19 than fever.

For this reason, she’s an advocate of objective tests to measure sense of smell, such as sniff tests. To that end, her organization has developed an online smell and sniff test which can be completed by people by using scents in their own home, such as banana or shampoo. “}}