Please use this identifier to cite or link to this item:
10.3390/microorganisms11030596
Title: | Prevalence and Genetic Diversity of Legionella spp. in Hotel Water-Supply Systems in Latvia |
Authors: | Valciņa, Olga Pūle, Daina Ķibilds, Juris Lazdāne, Andžela Trofimova, Jūlija Makarova, Svetlana Konvisers, Genadijs Ķimse, Laima Krūmiņa, Angelika Bērziņš, Aivars Department of Infectology |
Keywords: | Legionella spp.;Water;Latvia;hotel;1.6 Biological sciences;3.3 Health sciences;1.1. Scientific article indexed in Web of Science and/or Scopus database |
Issue Date: | Mar-2023 |
Citation: | Valciņa , O , Pūle , D , Ķibilds , J , Lazdāne , A , Trofimova , J , Makarova , S , Konvisers , G , Ķimse , L , Krūmiņa , A & Bērziņš , A 2023 , ' Prevalence and Genetic Diversity of Legionella spp. in Hotel Water-Supply Systems in Latvia ' , Microorganisms , vol. 11 , no. 3 , 596 . https://doi.org/10.3390/microorganisms11030596 |
Abstract: | Legionella is one of the most important waterborne pathogens that can lead to both outbreaks and sporadic cases. The majority of travel-associated Legionnaires’ disease (TALD) cases are contracted during hotel stays. The aim of this study was to evaluate the prevalence and genetic diversity of Legionella spp. in hotel water supply systems in Latvia. In total, 834 hot water samples were collected from the water systems of 80 hotels in Latvia. At least one Legionella spp. positive sample was detected in 47 out of 80 hotels (58.8%). Overall, 235 out of 834 samples (28.2%) were Legionella spp. positive. The average hot water temperature in Latvian hotels was 49.8 °C. The most predominant L. pneumophila serogroup (SG) was SG3 which was found in 113 (49.8%) positive samples from 27 hotels. For 79 sequenced L. pneumophila isolates, 21 different sequence types (ST) were obtained, including 3 new types—ST2582, ST2579, and ST2580. High Legionella contamination and high genetic diversity were found in the hotel water supply systems in Latvia, which, together with the insufficient hot water temperature, may indicate that the lack of regulation and control measures may promote the proliferation of Legionella. |
DOI: | 10.3390/microorganisms11030596 |
Appears in Collections: | Research outputs from Pure / Zinātniskās darbības rezultāti no ZDIS Pure |
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microorganisms-11-00596.pdf | 1.82 MB | Adobe PDF | View/Open |
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