One of the better systems is run by Washington, D.C., where the city has established a portal to report positives from an at-home rapid test, allowing a contact tracer to get in touch.

The state of Colorado has a similar portal, and the city of Austin, Texas, has an email address to report at-home positives.

Yes, but: Residents don’t always know about these options, and because they’re all ad hoc systems, they can be difficult to track down even for the people who are inclined to use them.

That’s exemplified by a place like the Dallas-Fort Worth metroplex, where Fort Worth’s Tarrant County has an extensive self-reporting tool while Dallas County simply refers back to the CDC’s general guidance on at-home testing.