RT Journal Article SR Electronic T1 Otitis externa due to Pseudomonas in swimming pool bathers JF The Journal of the Royal College of General Practitioners JO J R Coll Gen Pract FD British Journal of General Practice SP 359 OP 360 VO 27 IS 179 A1 Michael A. Weingarten YR 1977 UL http://bjgp.org/content/27/179/359.abstract AB An outbreak of otitis externa was observed to affect one third of 230 swimmers using a new swimming pool within three weeks of its opening. Pseudomonas aeruginosa was grown from the water and from all of the nine swabs taken from the infected ears of the swimmers. During the same period only six other cases of otitis externa were seen in the local general practice serving 4,000 patients. The disinfection procedures were found to be defective and after they were corrected the outbreak subsided.