This project has been funded by the National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, through the NIH RADxSM Initiative.

Important Information

Important Information

The When To Test Calculator:

  • Provides education and guidance for asymptomatic screening in an organization.
  • Helps determine the testing frequency needed to identify and isolate people who test positive for COVID-19.
  • Works best when 100% of an organization’s population is tested prior to initiating a screening protocol. 
  • Assumes the prevalence of COVID-19 within an organization is no greater than that of the broader community.
  • Does NOT ensure that COVID-19 will be kept out of your organization.
  • Does NOT replace the need for other mitigation efforts such as social distancing, improved ventilation, masking, and appropriate hygiene practices.
  • The Calculator is subject to the disclaimers set forth on the site and the End User License Agreement.