At a public hearing last year in Boise, Idaho, recent transplant Alicia Peterson urged lawmakers not to tighten vaccine requirements. "I, this last year,鈥�

Back in mid-December, three children were hospitalized with measles after passing through the Denver airport and the emergency department of Children鈥檚鈥�

Health officials are investigating an outbreak of mumps that started among employees of Keystone Resort in Colorado. Of the 19 cases identified so far, 18鈥�