Chipotle
Health officials are investigating whether 30 students were affected by E.coli.
They complained of gastrointestinal symptoms.
Illinois, Maryland and Pennsylvania are now reporting illness.
43 of the 45 people in the most recent outbreak reported eating at Chipotle.
WHAT'S HAPPENING
Of 45 people infected, 43 reported eating at Chipotle.
"When you go to a restaurant, let's face it -- you're kind of at the mercy of what's going on in the kitchen."
A batch of tests found no E. coli bacteria in food samples.
The worker was also reprimanded for discussing wages with his colleagues, which is a federal right.
The most recent outbreak involves E. coli contamination in food from Chipotle Mexican Grill.