Summary:
- This article discusses the development and evaluation of a mobile app called "COVID-19 Symptom Tracker" that helps users monitor their COVID-19 symptoms and risk factors.
- The app collects self-reported data on symptoms, exposures, and testing, and provides personalized risk assessments and recommendations based on the user's inputs.
- The researchers found that the app was well-received by users and provided valuable insights into the spread and progression of COVID-19, which can inform public health decision-making.