Oh frozen food, you are so helpful during investigations of foodborne illness.

The U.S. Centers for Disease Control reported last night, in its best CDC-speak,

“Collaborative investigative efforts of state, local, and federal public health and regulatory agencies have linked this outbreak to eating turkey burgers. Investigators were not able to determine consumption of turkey burgers for all case-patients. However, FSIS determined that at least three of the case-patients in Colorado, Ohio, and Wisconsin specifically reported eating Jennie-O Turkey burgers the week before their illness began. Samples of Jennie-O ground turkey burgers were collected by public health agencies from the homes of case-patients in Colorado and Wisconsin who tested positive for the outbreak strain of Salmonella Hadar. Both turkey burger samples were positive for the outbreak strain. States have reported antibiotic resistance of the outbreak strain to several clinically useful drugs including ampicillin, amoxicillin/clavulanate, cephalothin, and tetracycline.

"As of April 1, 2011, 12 persons infected with the outbreak strain of Salmonella Hadar have been reported from 10 states: Arizona (1 case), California (1 case), Colorado (1 case), Georgia (1 case), Illinois (1 case), Missouri (1 case), Mississippi (1 case), Ohio (1 case), Washington (1 case), and Wisconsin (3 cases). Isolation dates range from December 27, 2010 to March 24, 2011. Ill persons range in age from 1 year to 86 years old, with a median age of 29 years old. Sixty-three percent are female. Among the 12 ill persons with available information, three have been hospitalized. No deaths have been reported."