| shigellosis associated with recreational water contact in los angeles county. | an outbreak of shigellosis associated with swimming at a human-made lake during the labor day weekend occurred in los angeles county in 1985. sixty-eight persons had onset of diarrheal illness within 1 week following exposure at the recreational site. thirty-three of these cases were culture-confirmed as shigellosis (29 shigella sonnei, 4 shigella boydii). fifteen persons were hospitalized. illness was highly associated with water contact, specifically swallowing water while swimming (p less tha ... | 1988 | 3275140 |