mhleli: into engikhuphulela ushulela wami yilo mkhuba wabantu basemzansi. kanti ngempela kwakhala nyonini ezingqondweni zethu? kwenziwa yini singafundi emaphutheni esiwenzile phambilini? ukuthanda izinto okwakwenzenjani lokhu okuze kusivale nengqondo? A retrospective cohort study was conducted of seasonal campers (i.e., campers who rented RV sites for the entire summer) via personal interview. Any person who stayed at least one night at a seasonal campsite during the study period was considered a cohort member. Response rate was estimated by using the mean number of campers per campsite to estimate the number at campsites where campers could not be contacted. A meningitis patient was defined as a seasonal camper with headache and either neck stiffness or photophobia, with illness onset during July 16-August 17, 2003. Laboratory-confirmed cases additionally had [greater than or equal to] 10 white blood cells/[micro]L identified by CSF analysis. Other acute, self-limited illnesses consistent with enteroviral infections also were identified during the outbreak period. A case of enterovirus-like illness was defined clinically as an acute illness with any one of the following symptoms: headache, neck stiffness, photophobia, sore throat, chills, or exanthem (i.e., acute generalized skin rash) in a seasonal camper with illness onset during July 16-August 17. Primary campsite illnesses were defined as the first acute illness of either case type at a campsite. Univariate and multivariate logistic regression analyses were used to identify predictors for primary illness. Enterovirus polymerase chain reaction (PCR) and amplicon sequencing (2) were performed at CDC.