You can order free COVID tests at covidtests.gov and insurance must reimburse for home tests. Here’s why tests are often sold out, where you can buy them, and how accurate various options are, including On Go, Binax, Quickvue, iHealth, and FlowFlex.
Antigen tests, which test for an active infection by detecting specific virus proteins. Most at-home tests and “rapid tests” performed by healthcare providers fall in this category.
