If you’ve got a fever and a cough, you don’t necessarily have to go to the doctor anymore to find out if it’s the flu or Covid-19.

On Friday, the US Food and Drug Administration authorized what it says is the first at-home test that can tell users if they have the flu and/or Covid-19.

The test, made by California biotech company Lucira Health, uses a single self-collected nasal swab and can provide results in about half an hour. The test can be bought without a prescription. It’s authorized for anyone 14 and older for self-collection, or an adult can give it to a child 2 or older.