We determined whether the incidence rates of travel-associated Legionnaires' disease (TALD) in hotels in Germany increased after a previous occurrence and whether control measures required by the European Legionnaires' Disease Surveillance Network after a cluster (>2 cases within 2 years) restored the rate to baseline. We analyzed TALD surveillance data from Germany during 2015-2019; a total of 307 TALD cases (163 domestic, 144 nondomestic) in hotels were reported. The incidence rate ratio was 5.5 (95% CI 3.6-7.9) for a second case and 25 (95% CI 11-50) for a third case after a cluster had occurred, suggesting that control measures initiated after the occurrence of TALD clusters might be inadequate to restore the incidence rate to baseline. Our findings indicate that substantial LD preventive measures should be explored by hotels or other accommodations after the first TALD case occurs to reduce the risk for future infections.
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http://dx.doi.org/10.3201/eid3001.231064 | DOI Listing |
Curr Res Microb Sci
January 2025
Université de Poitiers, UMR CNRS 7267, Ecologie et Biologie des Interactions, France.
, the causative agent of Legionnaires' disease, interacts in the environment with free-living amoebae that serve as replicative niches for the bacteria. Among these amoebae, is a natural host in water networks and a model commonly used to study the interaction between and its host. However, certain crucial aspects of this interaction remain unclear.
View Article and Find Full Text PDFArch Environ Occup Health
January 2025
Environmental Quality and Intervention Department, Agència de Salut Pública de Barcelona, Barcelona, Spain.
Following a legionnaire's disease outbreak in Barcelona in 2022, sport fields' sprinklers were identified as potential sources of Legionella infection. The Agency of Public Health of Barcelona inspected all 40 urban municipal sports fields in the city. was found in 55% of them, including in 11 samples.
View Article and Find Full Text PDFJ Bacteriol
January 2025
Department of Population Medicine and Diagnostic Sciences, Cornell University, Ithaca, New York, USA.
and are two phylogenetically related bacterial pathogens that exhibit extreme intrinsic resistance when they enter into a dormancy-like state. This enables both pathogens to survive extended periods in growth-limited environments. Survival is dependent upon their ability to undergo developmental transitions into two phenotypically distinct variants, one specialized for intracellular replication and another for prolonged survival in the environment and host.
View Article and Find Full Text PDFInt J Infect Dis
January 2025
National reference centre for Legionella pneumophila, Department of Microbiology, Universitair Ziekenhuis Brussel (UZ Brussel), Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, 1090 Brussels, Belgium.
Introduction: The incidence of Legionnaires' disease (LD) steadily increases worldwide. Although Legionella pneumophila is known as pathogenic, systematic investigations into antibiotic resistance are scarce, and reports of resistance in isolates are recently emerging.
Methods: Clinical cases and metadata reported to the Belgian National Reference Centre between 2011 and 2022 were retrospectively analysed.
BMC Pulm Med
January 2025
Department of Respiratory and Critical Care Medicine, Lishui Hospital of Traditional Chinese Medicine Affiliated to Zhejiang University of Traditional Chinese Medicine, No. 800 Zhongshan Road, Liandu District, Lishui, Zhejiang, 323000, China.
Background: Legionella pneumophila is an uncommon pathogen causing community-acquired atypical pneumonia. Acinetobacter baumannii is a major pathogen responsible for hospital-acquired pneumonia, but it rarely causes serious infections in a community setting. Without prompt and appropriate treatments, infection from either of these two pathogens can cause a high mortality rate.
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