Not yet: the thyme-flavored flu sensor is an experimental concept, not a gum or lozenge you can buy or use to diagnose yourself. In lab tests, a designed molecule released thymol—the compound associated with thyme—when exposed to saliva from people diagnosed with influenza. The work described by the American Chemical Society (ACS) did not establish that people can taste the signal, that it detects flu before symptoms, or how accurately it would work in patients.
How could a taste signal indicate influenza?
The proposed sensor is a molecular substrate modeled on a target of influenza neuraminidase, an enzyme associated with the virus. The substrate is attached to thymol, the flavor compound associated with thyme. If neuraminidase cleaves the substrate, free thymol is released; the intended signal is a strong herbal taste on the tongue.
The idea is to put the sensor into a chewable format such as gum or a lozenge, so a person would not need a specialized detector to perceive a signal. That is the concept, not a demonstrated at-home testing method: the reported experiments measured thymol release in laboratory samples, not a person’s ability to taste it.
What has been demonstrated so far?
- In laboratory vials, the sensor released free thymol within 30 minutes when mixed with saliva from people diagnosed with influenza.
- In the reported experiments, tests on human and mouse cells did not change cell functioning.
- The ACS account describes the work as preclinical. It reported that the researchers hoped to begin human clinical trials in about two years; it did not report that those trials had begun or provide human results.
The 30-minute figure is a laboratory thymol-release time, not a validated time-to-diagnosis for a person. The ACS account gives no human sensitivity, specificity, taste-response, or presymptomatic-performance figures.
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Could it detect flu before symptoms?
That remains unknown. The stated experiments involved saliva from people already diagnosed with influenza; they do not establish whether the sensor detects infection before symptoms appear. Nor do they show how often the sensor might miss an infection or produce a signal when influenza is absent.
ACS contrasts the concept with nasal-swab PCR, described as accurate but slow and expensive, and at-home lateral-flow tests, described as convenient and generally low-cost but capable of missing presymptomatic infections. A taste-based sensor might eventually serve as a rapid first-line screen, including in higher-risk settings, but that role has not been validated. A future positive signal would need to be handled according to appropriate confirmatory testing and care guidance.
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- Made for Ages 2 and Above; Parents Can Stop Guessing: Quickly identify whether you or your kids are dealing with coronavirus or influenza A & B. Adult-collection is required for those aged 2-13 years, and self-collection by individuals aged 14 years and older.
- Same Ease-of-Use; Get 3 Results in 1 Test: Utilizing the familiar 4 user-friendly steps of at-home COVID tests, you can now get all 3 results for COVID-19 and Flu A & B at once with 5 drops of sample.
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Can you buy the thyme-flavor flu test?
No product is identified in the ACS account. It says the authors registered a patent with the European Patent Office, but does not name a manufacturer or report regulatory clearance, retail availability, or a price. The sensor should therefore be treated as experimental—not as a substitute for an available flu test or medical advice.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What evidence would show whether it works in people?
Human studies would need to establish whether users can reliably perceive the taste signal and whether it corresponds to influenza infection. Useful evidence would include performance before and after symptom onset, sensitivity and specificity, time to result in real use, and how the test compares with confirmatory testing. Practical evaluation would also need to address sample handling, regulatory status, cost, and access for people with impaired taste. None of those human or product-level results is provided in the ACS account.
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