HealthDay
As many as 1.6 million people in the United States will develop olfactory dysfunction or loss of smell from COVID-19, a new study projects. [Some] develop chronic dysfunction that lasts for six months or more. … Once supporting cells in the nose recover, smell returns for about 90% of people with COVID, Piccirillo said. Researchers still aren't sure why some people, like Stern, experience chronic loss of smell.