# A $4 tongue swab test detects tuberculosis within 30 minutes

> Source: <https://www.sciencenews.org/article/test-tuberculosis-quick-inexpensive-tb>
> Published: 2026-05-28 13:00:00+00:00

# A $4 tongue swab test detects tuberculosis within 30 minutes

The portable test could help millions with limited access to health care

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The portable test could help millions with limited access to health care

This is a human-written story voiced by AI. Got feedback? [
Take our survey ](https://docs.google.com/forms/d/e/1FAIpQLSfw1yaOK0bBsHcFWa1rAtcNVM1jukBkJo8Fw_uj-5XTV4CnJQ/viewform).