CDC is collaborating with public health officials in many states and the U.
S. Department of Agriculture's Food Safety and Inspection Service (USDA-FSIS) to investigate a multistate outbreak of Salmonella Heidelberg infections that is likely caused by eating ground turkey. Public health investigators are using DNA "fingerprints" of Salmonella bacteria obtained through diagnostic testing with pulsed-field gel electrophoresis,or PFGE, to identify cases of illness that may be share of this outbreak.
Source: cdc.gov