title: Seasonality of Legionella isolates from environmental sources.
abstract: Legionnaires' Disease in South Africa has tended to show a seasonal pattern of occurrence with peaks in late summer and autumn (November to May). We investigated the possibility of a correlation between the seasonal finding of the organism in environmental habitats and the occurrence of clinical cases. Results of tests performed on environmental specimens indicate that the isolation rate is higher in summer-autumn than during winter-spring.
mesh_terms: D004196:Disease Outbreaks; D006801:Humans; D007875:Legionella / Q000302:isolation & purification*; D007877:Legionnaires' Disease / Q000453:epidemiology*; D012189:Retrospective Studies; D012621:Seasons; D013019:South Africa; D014871:Water Microbiology