Inclusion Criteria:

- Lives in the United States

- Speaks, reads, and understands English

- Currently owns and uses a consumer wearable device (Apple Watch, Garmin, or Fitbit)
with necessary step and heart rate data at minimum or willing to wear a
study-provided device and download the Fitbit app

- Willing to connect their wearable device to the Evidation platform and wear it daily
for at least 10 hours for the duration of the study

- Owns a smartphone with Apple iOS 15 installed or higher OR Android version 9.0
installed or higher or willing to update

- Willing to respond to daily and weekly questionnaires for a 10-week period

- Willing to complete at-home nasal swab tests and return the nasal swab samples
within 24 hours of being asked to complete it

- Meets data density requirements for wearable devices

Exclusion Criteria:

- Self reported diagnosis of both flu and COVID by a healthcare professional or using
an at-home test in the past 3 months

- Currently enrolled in another interventional study to prevent or treat COVID-19 or
another flu-related program being conducted by Evidation (individuals currently
participating in Evidation's FluSmart program will be told that their participation
will be paused)

- Has a primary mailing address that is a P.O box, Army Post Office (APO), Fleet Post
Office (FPO), or Diplomatic Post Office (DPO) address, or U.S. military base located
overseas, or U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, Northern
Mariana Island, or American Samoa)