Even many symptomatic patients and exposed health workers who are able to get a COVID-19 test must wait nearly a week to get results. Others get results in hours. Here's why it varies so much.
When pressed on why the U.S. didn't import coronavirus tests after the CDC's effort ran into trouble, government officials drew on a study that had been retracted.
There's still a big gap between what the federal government is promising in terms of testing capacity in the U.S. and what state and local labs can deliver.
Scientists at the University of Washington's medical school began working on a test for coronavirus back in January. Now they're using it to fight an outbreak in their own backyard.
A New York woman worried that her sore throat might be strep, so she went to the doctor to have it checked out. Then came the bill — with a price tag similar to a small SUV.
A growing number of start-ups are offering at-home tests that let you check your thyroid, your fertility, even food sensitivities. But some doctors view the tests with skepticism.
