In the child welfare system, the threshold at which a drug test is considered positive varies widely from one jurisdiction to ...

Three relatives test positive for methamphetamine but claim results are false and provide independent negative tests.

As flu cases rise across the country, here is everything to know about testing yourself for the illness at home.

A 2022 study estimates that at-home flu tests have a sensitivity of about 63% if the test is performed within 72 hours of ...

Receiving a non-reactive HIV test result brings immense relief for most people, but understanding what this outcome truly means requires more than a simple celebration. While a negative result ...

A view of the East Block at San Quentin. Thousands of drug tests given to California inmates gave false results last year. Prison advocates worry that parole decisions were tainted. (Robert Gauthier / ...

JACKSONVILLE, Fla. – Free local news and info, in your inbox at 6 a.m. M-F. Sign up for the Jacksonville Today newsletter. Duval County had 800 cases in the weekly report of Aug. 29, but that number ...

Here's what you need to know about the new travel rules. All travelers flying into the U.S. must now provide proof of a negative COVID-19 test, taken no more than three days before their flight, or ...

You may get a PCR test, which can show a positive result for up to three months after recovery. If you take a rapid antigen test, it may not detect COVID after nine days, but it is more accurate for ...

As we get into another winter holiday season, COVID is still part of our lives. And although it's hard to predict exactly what this year's cold, flu and coronavirus season will look like, experts want ...

An international study published in the Malaria Journal claims that a widely used test for detecting malaria is delivering too many inaccurate false-negative results and is “not fit for purpose”. The ...