An outbreak of mud-wrestling-induced pustular dermatitis in college students. Dermatitis palaestrae limosae
A. I. Adler and J. Altman
Student Health Center, University of Washington, Seattle.
OBJECTIVE--To investigate an outbreak of gram-negative folliculitis in
relation to a common exposure, mud wrestling, and identify risk factors for
dermatitis among those who mud wrestled. DESIGN--Case-control study.
SETTING--University of Washington, Seattle. PARTICIPANTS--Two
college-residence groups of students. RESULTS--Cultures from affected
students and from mud similar to that used for wrestling yielded
Enterobacteriaceae. The odds ratio associated with mud wrestling was 79.5
(95% confidence interval, 13.9 to 895.4). Increased time spent wrestling
was associated with increased risk. Skin trauma during wrestling or
immersion in the mud increased the risk of infection (odds ratio, 23.1; 95%
confidence interval, 1.7 to 1440.4). CONCLUSIONS--Mud wrestling is one
cause of pustular follicular dermatitis. Trauma to the skin may be a
necessary cofactor for the development of infection.