date:Aug 01, 2013
A severe stomach illness linked to prepackaged salad has struck two new patients in Iowa, state health officials said on Wednesday, as the bug spread through 16 states.
The salad mix has been blamed for most of the 145 total cases in Iowa and the 78 in Nebraska of the rare parasite cyclospora, which causes gastrointestinal illness. The two states account for nearly two-thirds of at least 378 cases in the United States since mid-June.
The cause of outbreaks in other states is still under invest