Tests that quantify changes in dogs suspected of having cognitive decline could also be a model for Alzheimer's disease in people.

"If melanoma is being over-diagnosed, it means that too many people are getting the scary news that they have cancer..."

A new COVID-19 sensor that combines PCR test accuracy with the speed of antigen tests could be used for mass testing at airports, schools, and hospitals.

A new test that uses a simple heating device and cellphone can tell within 10-15 minutes if you have COVID, and if so, which of the five variants you have.

Researchers report a potential new test for Lyme disease that could identify it sooner and show how well treatments work.

Treatment for COVID-19 shouldn't only be based on testing, researchers warn. Their new study shows that can miss patients at high risk.

Treatment for COVID-19 shouldn't only be based on testing, researchers warn. Their new study shows that can miss patients at high risk.

A medical test uses smartphone vibrations and a single drop of blood to detect how well blood will clot. "Almost everyone who has a phone can use this."

A medical test uses smartphone vibrations and a single drop of blood to detect how well blood will clot. "Almost everyone who has a phone can use this."

Lack of available COVID-19 testing may lead people to riskier behavior, a 2020 survey of more than 1,100 people in the United States found.