Federal health authorities say nationwide, 100 people have been stricken in 19 states.
Nine case have been reported here Illinois, three of them were hospitalized.
The Centers for Disease Control is still trying to find the source of the outbreak.
Federal health authorities say nationwide, 100 people have been stricken in 19 states.
Nine case have been reported here Illinois, three of them were hospitalized.
The Centers for Disease Control is still trying to find the source of the outbreak.