A smartphone app that tracks COVID-19 symptoms has collected information from more than 4 million people worldwide, and is giving doctors a closer look at the different symptoms patients are experiencing.
The variety of different symptoms people are exhibiting with COVID-19 is startling.
"I've seen more varied presentations of COVID that anything I can think of in my career so far," said Dr. Troy Pennington of Arrowhead Regional Medical Center in Colton.
The app, called the COVID Symptom Study, was created by doctors and scientists at Massachusetts General Hospital, The Harvard T.H. Chan School of Public Health, King's College London and Stanford University School of Medicine, working along with ZOE, a health science company. Users can input their own health information and get statistics on those also participating around their area.