Pick ‘n Save stores are offering COVID-19 rapid antibody testing.

The tests take a finger prick of blood and results will show if a person previously has been infected with SARS-CoV-2. That’s the virus that causes COVID-19.

These tests are for people who believe they may have been infected with COVID-19 but had no symptoms.

The tests do not show an active COVID-19 infection. The only detect antibodies developed in response to the virus.

“Research is still underway to determine how long antibodies are present following infection and if the presence of antibodies provides protective immunity,” reads a statement from the grocery chain.

The tests, which have been approved by the FDA, take about 15 minutes to show results. The tests are given by a licensed health professional.

The tests are located at Pick ‘n Save and Metro Market pharmacies. They cost $25.