Measles Warning After Train Trip Across California

California health officials warned Alameda, Butte, Kern, Los Angeles, Sacramento and San Joaquin counties of measles exposure, which spreads easily like a cold, from an infected, unvaccinated traveler. They rode Amtrak trains and thruway buses, arriving Los Angeles 10 September, then visiting Bakersfield, Stockton, Oroville, Sacramento and Emeryville before leaving for Denver.