Over 4,400 measles cases reported, CDC plans to send 'disease detective' to PA

Over 4,400 measles cases have been reported in the U.S., according to an update from the CDC. A total of 4,410 cases have been confirmed, with most reported by 45 states and Washington, D.C. Eighteen of this year's total have been among international visitors to the U.S., according to the CDC.