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States where persons infected with the outbreak strain of E. coli O157:H7 live, United States, by state, from August 18, 2009 to November 6, 2009
The cluster includes 25 persons from 10 states infected with matching strains of E. coli O157:H7. The number of ill persons identified in each state is as follows: California (1), Connecticut (4), Massachusetts (8), Maryland (1), Maine (2), New Hampshire (4), New Jersey (1), New York (1), Pennsylvania (2), and Vermont (1). Of these, the genetic associations of 22 human isolates and the product isolate have been confirmed by an advanced secondary DNA test; secondary tests are pending on others. Depending on the results of continuing laboratory testing and ongoing case finding, the number of persons determined to be in this cluster may increase or decrease.
Page last modified: November 9, 2009
Content source: National Center for Zoonotic, Vector-Borne, and Enteric Diseases (ZVED)