Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
Continuing coverage of Malaysia Airlines Flight 17. Plus, the latest on Mideast tensions.
(CNN) – There are already two confirmed cases of Middle East Respiratory Syndrome - or "MERS" – on U.S. soil.
Now, officials in the Netherlands have identified a second case there, stoking fears of a swelling global health crisis.
The National Institutes of Health is already working on neutralizing MERS.
"We're developing a vaccine for it, and we're looking for drugs that we can screen that might be beneficial for people who might be infected and we're already in the process of targeted drug development," said Dr. Anthony Fauci, of director of allergy and infectious diseases at the NIH.
For more of our interview with Dr. Anthony Fauci, check out the video above.