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. 2020 May 5;29(7):1283–1289. doi: 10.1158/1055-9965.EPI-20-0606

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©2020 American Association for Cancer Research.

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Figure 1. — The COVID Symptom Study smartphone application. After providing informed consent and registering, participants are asked basic demographic information, baseline health questions, and whether they are experiencing any potential COVID-19 symptoms or have received testing or treatment for COVID-19. There is a specific module of questions for health care workers related to possible COVID-19 exposures and PPE use. Participants are requested to return to the app daily to log how they are feeling, even when they are well or symptoms have resolved. If they report feeling unwell, they are asked about specific symptoms. Finally, participants see an estimate of COVID-19 cases in their area and how many people in their county are reporting via the app. There is an option to share the app with others. The application is available for Android and Apple iOS operating systems.