The deadly coronavirus pandemic has stopped the world in its tracks, and exposed a weak spot in U.S. preparedness for a public health emergency.
Experts say aggressive diagnostic testing is essential in order to learn where and how an epidemic spreads. But in the critical first weeks of the outbreak in the U.S., one problem after another prevented doctors, clinics and labs around the country from testing enough people.
Patients in America were being sent home as hospitals limited their use of tests to conserve supply, while other countries like South Korea found a way to test hundreds of thousands of people quickly.
Now, the U.S. is months behind in understanding the true scope of the virus. Testing capacity is finally ramping up, but is it too late? Watch the video above to find out more.