There's growing evidence that Bartonella infection can involve skin lesions and mental symptoms, report researchers.

"Interstitial fluid originates in the blood and then leaks out of capillaries to bring nutrients to cells in the body's tissues." New microneedles can sample it for testing.

Using "lab on a chip" technology, researchers have created a microlab half the size of a credit card that can detect COVID-19 in just 30 minutes.

"Analyzing microRNA profiles in saliva... is a non-invasive way to test for concussion that can't be influenced by a patient's feelings or motives."

Researchers have created a low-cost, pain-free, super simple malaria test that delivers results in just a few minutes with a microneedle patch.

A new COVID test uses gargling with saltwater instead of a stick up your nose. Researchers say initial results are promising.

Using a method originally developed to detect mad cow disease, researchers discovered that a simple skin test can accurately identify Parkinson's disease.

Even though wait times for COVID test results have dropped in the United States, they still don't come back fast enough to be useful for contact tracing.

Swallowing a tiny capsule could offer a full view of your GI tract and gut bacteria. The tiny tool could even scoop up bacteria and deliver them to doctors.

There's no pandemic "silver bullet", but COVID-19 testing, contact tracing, masks, and vaccine development are key to going back to school or the office.