Doctors are worried about a growing number of COVID-19 survivors who still don't have a sense of taste or smell.
It's a common symptom and for many it goes away with the virus.
But for others, it lingers around months later.
Researchers are still trying to figure out why it affects people differently.
Meanwhile, a doctor with Washington University School of Medicine is predicting at least a million new cases of people with chronically diminished senses in the coming year.
