This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Which of the following is true about Enteropatho genic E coli - 
Select and explain. 
A. Causes diarrhea in infants, B. Acts by invasion of Intestinal epithelial cells, C. Adults are mostly affected, D. Affects immunocompromised host
A: Causes diarrhea in infants
Answer: A: Causes diarrhea in infants 
Explanation: Ans. is 'a' i.e., Causes diarrhea in infants "Enteropathogenic E. coli has been associated mainly with diarrhea in infants and children usually occuring as institutional out breaks". Specific diseases caused by different pathotypes . Enteropathogenic E coli (EPEC) Diarrhea in Infants and children . Entero toxigenic E. coli (ETEC) --> Traveller's diarrhea . Entero invasive E. coli (ETEC) Diarrhea to dysentry similar to shigellosis . Enterohemorrhagic E. coli (EHEC) --> Hemolytic uremic syndrome, Hemorrhagic colitis . Enteroaggregative E.coli --> Persistant diarrhea . Extraintestinal pathogenic strains --> UTI, Abdominal & pelvic infections, meningitis, Septicemia.