Measles had struck this West Texas town, sickening dozens of children, but at the Community Church of Seminole, more than 350 worshippers gathered for a Sunday service. Sitting elbow-to-elbow, they filled the pews,

Kennedy's acknowledgement of the value of the measles vaccine comes as the outbreak that began in Texas continues to grow. So far, nearly 150 cases and one death—the first U.S. fatality from the disease in more than 10 years—have been confirmed. It's the largest measles outbreak in the U.S. in decades.