Consortia for Improving Medicine with Innovation and Technology
Massachusetts Institute of Technology Institute for Data, Systems, and Society
National Institute of Biomedical Imaging and Bioengineering

Our Mission

WhenToTest exists to help all Americans understand how to use at-home tests effectively.

About the COVID and Flu Risk Quiz

None of us want to spread coronavirus or flu to our friends, families, colleagues, or community. The COVID and Flu Risk Quiz (formerly the COVID Risk Quiz) helps you decide whether you need to test for one or both of those viruses.

You tell the Quiz:

  • Whether you're up-to-date on vaccines and what your masking habits are.

  • If you have symptoms or have been exposed to someone who's sick.

  • If you tested recently, and what kind of places you've been to in the past week.

The Quiz combines that information with other inputs and information about the COVID and flu situation in your area and lets you know if you need to get tested.

This project has been funded by the National Institute of Biomedical Imaging and Bioengineering (NIBIB), National Institutes of Health, through the NIH RADx® Initiative. NIBIB is not responsible for the contents of this website. 

The National Institutes of Health launched the Rapid Acceleration of Diagnostics (RADx®) Initiative to speed innovation in the development, commercialization and implementation of technologies for COVID testing.