A Texas megachurch is tied to a major measles outbreak, and doctors warn it's spreading.
At least 21 people in two Texas counties have been infected. Many belong to the Eagle Mountain International Church in Newark, Texas.
A church spokesperson is denying anti-vaccination teachings. But here's what church founder Kenneth Copeland said in August 2010:
"As parents, we need to be a whole lot more serious about this, in being aware of what is good and what isn't, and you don't take the word of the guy that's giving the shot about what's good and what isn't," Copeland said.
OutFront: CNN Chief Medical Correspondent Dr. Sanjay Gupta.