UTI – Organism “EC400” – cant find info on strain

Patient: I had a urine culture done thats says organism was EC400…. do you suspect clerical error as i can find no info on the strain?

Symptoms: Had severe dehydration…. blood levels were elevated not extreme… severe diarrhea…. couldnt hold down liquids… yellow/green bile… diagnosed as uti but suspected food poisoning

Doctor: