UC San Diego developing sticker that works as a simple COVID-19 test on masks - KABC-TV

With emergency rooms overflowing at hospitals across California, many people are trying to manage their COVID-19 infections at home with a device that can be found in most pharmacies.

Many patients who initially experienced milder COVID-19 symptoms are now showing up at the doctor's office months later with debilitating problems?

They're being called "long-haulers.".