The Centers for Disease Control and Prevention has reported one person died and five people were hospitalized after eating contaminated romaine lettuce in North America.
E. coli symptoms can look a lot like the flu, which makes it difficult detect. But, so far investigators with the CDC in the U.S. and the Public Health Agency of Canada have found 58 people became ill after eating contaminated lettuce in the past few weeks.
In the U.S., infections span across 13 states from California to New Hampshire.
While no cases have surfaced in Arizona, health inspectors are looking at lettuce producers in both California and Arizona where 90 percent of the leafy vegetable is grown during the winter months.
The CDC warns E. coli bacteria can cause severe illness, kidney failure and even death.
