Here's how Covid-induced smell loss differs from that caused by common cold

Researchers wanted to see if their smell and taste test scores could help discriminate between Covid-19 patients and those with a heavy cold

Researchers have shown how smell loss associated with the Covid-19 infection differs from what you might typically experience with a bad cold or flu.

The main differences found are that, although Covid-19 patients also lose their sense of smell, they can breathe freely, do not tend to have a runny or blocked nose, and they cannot detect bitter or sweet tastes.

These findings, published in the journal Rhinology, lend weight to the theory that Covid-19 infects the brain and central nervous system.

"The loss of smell and taste is a prominent symptom of Covid-19, however, it is also a common symptom of having