AdvertisementHow Public Health Outreach Ended A 1990s Measles Outbreak And What's Different NowMay 13, 2019Gwynne HoganfacebookEmailSigns advertising free measles vaccines and providing information about measles are displayed at the Rockland County Health Department in Pomona, N.Y. The county in New York City's northern suburbs has had more than 200 measles cases since last fall. (AP)