Abstract
Escherichia coli is a gram-negative bacillus, facultative, which can as belong to microbiota, playing an important role in intestinal regulation, as cause disease. Enteroagreggative Escherichia coli (EAEC) is a pathotype frequently associated to traveler´s and persistent diarrheas. O104:H4 is a serogroup of EAEC which caused an outbreak in Europe, mainly affecting German. This pathotype h…