The CDC says family members who had been with visiting one of the workers returned to America long before the infection.
Bob Kaiser, chief of tropical diseases at the CDC, was stumped by the descriptions of the fever.
The CDC estimates that some 128,000 Americans are hospitalized and 3,000 die each year after eating contaminated food products.
abbreviation of Centers for Disease Control, renamed 1970 from earlier U.S. federal health lab, originally Communicable Diseases Center (1946). Since 1992, full name is Centers for Disease Control and Prevention, but the usual initialism remains CDC.
Centers for Disease Control and Prevention
A government agency headquartered in Atlanta, Georgia, which is responsible for the control and suppression of infectious diseases. It offers a national information database on infectious disease and national support to the health care community by providing research and control measures in response to imminent health threats, such as epidemics.