To the Editor. — In the article "Freshwater Wound Infection Due toAeromonas hydrophila" (238:1053, 1977), Hanson et al comment thatA hydrophilamay be a more frequent human pathogen than the literature would suggest. The following two cases seen in August 1977 in Mercy Hospital, a 200-bed community hospital, support this suggestion and point out the need to recognizeA hydrophilaas the cause of cellulitis in healthy immunocompetent persons. Report of Cases.— Case1.—A 6-year-old boy was brought to the emergency room with an infected puncture wound on the right heel. His mother stated that the child had stepped on a rock while swimming a month earlier. Redness of adjacent soft tissues was noted and interpreted as cellulitis. The wound was debrided, and material was submitted for culture and sensitivity testing. Cultures grewA hydrophila, Staphylococcus aureuscoagulase positive, and y streptococci. Case 2.— A 16-year-old boy came