Fluctuation in Legionella pneumophila Counts in Cooling Towers over a 1-Year Period

Autor: D. F. Geary, J. E. Stout, B. S. Fields, R. Montenegro, R. M. Ratcliff, N. P. Cianciotto, Marian Garcia-Nuñez, Sonia Ragull, Miquel Sabrià, Nieves Sopena, T. G. Harrison, C. A. Joseph, M. L. Pedro-Botet, Inma Sanchez, A. Soler, Maria Esteve, P. H. Edelstein, M. S. Swanson, Y. A. Kwaik
Rok vydání: 2014
Předmět:
Popis: Colonization of cooling towers (CTs) by Legionella is frequent and has been implicated in many community outbreaks of Legionnaires´ disease (LD). This chapter describes the fluctuation in Legionella counts in CTs over a 1-year period. Ten colonies of each positive culture were selected and characterized by nutritional requirements and by the immunoglutination latex assay test (OXOID). Legionella pneumophila was isolated in 13 of 15 CTs (86.6%). All positive CTs were colonized by L. pneumophila serogroup 1. No seasonal influence was observed with respect to variations in L. pneumophila counts. All of the systems would not have been considered a risk at some sample time during the same season.
Databáze: OpenAIRE