<prompt> All are true about enterohemorrhagic Escherichia coli ExceptSereny test is positiveMay cause diarrhoeaCan cause hemolytic uremic syndromeVerocytotoxin is produced  <response>: The Sereny test is positive in Enteroinvasive E.coli. Enterohemorrhagic E.coli: produce verocytotoxin. It can give rise to diarrhoeal disease ranging from mild diarrhea to fatal hemorrhagic colitis and hemorrhagic uremic syndrome. Reference: Textbook of Microbiology; Anathanarayan and panikers; 10th edition; Page no: 285 