Quest and Labcorp may be archrivals in the diagnostic testing market, but they appear to agree on at least one thing: the ...

Myriad Genetics ($MYGN) is fighting back hard against rival Quest Diagnostics' ($DGX) decision to launch a new, cheaper BRCA test that challenges its own offerings ...

Quest Diagnostics recently unveiled a suite of advanced diagnostics and support services designed to broaden access to lab tests for transplants. Quest hopes to improve testing compliance among ...

"Quest's AD-Detect suite of advanced diagnostics has grown to include a range of validated blood-based biomarkers, giving providers options for personalizing testing for the individual patient," said ...

Outbreaks have surged in the South and West in the United States. As COVID-19 test positivity rates resurged in recent weeks, private test providers have made efforts to sound the alarm that the ...

In an oral presentation at the 2025 AAN Annual Meeting, Quest scientists presented data suggesting the test can accurately assess Alzheimer's disease pathology with greater than 90% sensitivity and ...