California health officials are warning of possible measles exposures after an unvaccinated passenger traveled by Amtrak train and bus through Los Angeles and several other counties before being hospitalized with the highly contagious disease. The passenger entered California aboard an Amtrak train from Chicago and arrived at Los Angeles Union Station on Sept. 12, according […]California health officials are warning of possible measles exposures after an unvaccinated passenger traveled by Amtrak train and bus through Los Angeles and several other counties before being hospitalized with the highly contagious disease. The passenger entered California aboard an Amtrak train from Chicago and arrived at Los Angeles Union Station on Sept. 12, according […]