This is a 6-month, 100% remote study that will collect a broad range of data that may provide insight into the COVID-19 global pandemic. Data collected will include participant medical histories, history of prior SARS-CoV-2 infection and exposure to known cases. On an ongoing basis data will be collected on new contacts with known cases, the presence of COVID-19 symptoms, including severity and outcome, and information on the immune system response to SARS-CoV-2 infection.

This is a 6-month, 100% remote study that will collect a broad range of data that may provide insight into the COVID-19 global pandemic. All data will be collected by participant entry into a mobile app designed for this study.

Upon entering the study, participants will be asked a series of questions about their prior exposure to the SARS-CoV-2 virus including reporting prior test results, and identification and description of contact with known or cases or other high risk encounters. Participants will also provide a detailed medical history.

On on ongoing basis, participants will be asked to report any symptoms associated with COVID-19 that they develop, and any new contacts they experience with known cases. Some participants will be sent an at-home SARS-CoV-2 antibody test and asked to report the results. In addition, participants will be asked to report the result of any other test they receive for COVID-19 outside of the study.

Inclusion Criteria:

• Open to any adult individuals (18 years of age or older) permanently residing in the United States
• Have regular access to smartphone and internet sufficient to support registry demands
• Willing and able to follow the procedures of the study
• Willing and able to provide informed consent

Exclusion Criteria:

• Participants unable to understand the study protocol or provide informed consent
• Participants unable or unwilling to perform all requested study tasks

Adults residing in the USA, regardless of past or current COVID-19 status