The Centers for Disease Control and Prevention, part of the U.S. Department of Health and Human Services, has issued an updated alert "for International Travelers Arriving in the United States From China, Vietnam, and Singapore."The CDC requests that "cargo vessels that have traveled in these areas should distribute the Health Alert Notice to all crewmembers and individuals on board, be particularly alert for this illness, and refer suspect cases to the nearest health authority."
The updated notice is available on the CDC site
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For additional information, try the following links:
www.cdc.gov/ncidod/sars
www.cdc.gov/travel/