California public health officials issued an urgent measles exposure warning after an unvaccinated passenger traveled across six California counties on Amtrak trains and thruway buses while infectious. According to the California Department of Public Health, the infected traveler journeyed through Alameda, Butte, Kern, Los Angeles, Sacramento, and San Joaquin counties between September 10 and September 14, prompting coordinated federal and local health notifications.
Amtrak Travel Route and Exposure Timeline
The multi-state rail and bus journey began in Chicago on September 10, bringing the passenger into California by way of Los Angeles Union Station on September 12 at 8:12 a.m., according to state records cited by the Sacramento Bee. From Los Angeles, the traveler transferred to a series of Amtrak connecting buses and regional trains across the state before heading toward Colorado.
The documented itinerary through California includes the following stops and transfers:
- September 12: Arrived at Los Angeles Union Station at 8:12 a.m. via Train 3 from Chicago, then departed at 10:55 a.m. for Bakersfield Station, arriving at 1:45 p.m.
- September 12: Departed Bakersfield at 2:02 p.m. and arrived at Stockton’s San Joaquin Street Station at 6:29 p.m.
- September 13: Departed Oroville at 4:00 p.m. by bus and arrived at the Sacramento Valley Station at 6:05 p.m.
- September 13: Departed Sacramento at 6:53 p.m. on Train 749 and arrived at Emeryville Station at 8:36 p.m., where the passenger spent a second night.
- September 14: Departed Emeryville at 8:25 a.m. on Train 6 and arrived in Denver on September 15 at 6:59 p.m.
Passengers who rode these specific trains and buses, or anyone present at the corresponding stations on those dates, may have contracted the virus, according to state health alerts reported by CBS News. The traveler has since been hospitalized, as noted by the Sacramento Bee.
Measles Symptoms and Public Health Guidance
Assistant State Public Health Officer Dr. Rita Nguyen stated that the incident underscores the ongoing necessity of immunization. “The measles-mumps-rubella (MMR) vaccine is safe and provides long-lasting protection against measles.”
State health authorities advise anyone potentially exposed to monitor for symptoms between seven and 21 days following exposure. Primary indicators of measles include a fever and an unexplained rash. Individuals who suspect they have been exposed or who develop symptoms should contact a healthcare provider immediately. Officials strongly recommend calling ahead before visiting any medical facility to prevent exposing other patients and staff.
Data from the California Department of Public Health shows that 59 measles cases were reported across 13 counties in the state, with 94 percent of those patients being unvaccinated or having an unknown vaccination status. Health agencies stress that two doses of the MMR vaccine are required for complete immunization.
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