States where persons infected with the outbreak strain of E. coli O157:H7 live, United States, by state, from August 21, 2009 to November 2, 2009
As of November 2, 2009, the outbreak cluster includes twenty-eight persons from 12 states infected with matching strains of E. coli O157:H7. Of these, the genetic association of 7 human isolates and the product isolate have been confirmed by an advanced secondary DNA test ; secondary tests are pending on others. The number of ill persons identified in each state is as follows: California (1), Connecticut (4), Massachusetts (8), Maryland (1), Maine (2), Minnesota (1), New Hampshire (4), New Jersey (1), New York (1), Pennsylvania (2), South Dakota (2), and Vermont (1).