Escherichia coli intestinal infections with

Two types of gram-negative rods cause eye infections. Haemophilus influenzae causes infections in early childhood, with otitis media and conjimctivitis often seen concurrently. The enteric gram-negative rods include Escherichia coli, Serratia marcescens, Proteus, and Pseudomonas aeruginosa. These bacteria are typically found in the intestinal tract and commonly cause urinary tract infections. In the eye they can cause corneal ulcers. 

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