Flesh-Eating Disease in Flagstaff

Via ProMED-mail: the Arizona Republic reports on two related cases of necrotizing fasciitis:

A patient with flesh-eating bacterium spread the infection to a health care worker at Flagstaff Medical Center, leaving both people hospitalized in serious condition.
The state Department of Health Services has asked doctors at the hospital to monitor other workers for symptoms, even though they don't think it has spread.
The DHS said the Flagstaff case represents the first documented case in Arizona of invasive Group A streptococcus spreading from a patient to a health care worker.
Officials at the medical center don't know how the disease was spread.