Occurrence of Listeria spp. in mattress dust of farm children in Bavaria

Korthals, Melanie; Ege, Markus; Lick, Sonja; Mutius, Erika von; Bauer, Johann

doi:10.1016/j.envres.2008.02.007

Cited by 14 publications

(12 citation statements)

References 25 publications

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“…Most commonly isolated Gram-positive genera are Deinococcus, the firmicutes Bacillus, Enterococcus, Lactococcus, and Staphylococcus, and the actinobacteria Arthrobacter, Corynebacterium, Micrococcus, Nocardiopsis, Rhodococcus, and Streptomyces (Andersson et al, 1999;Bouillard et al, 2005). The cultivable dust bacteria still remain unexplored; several examples show that the use of appropriate culture method enables the detection of bacteria that have remained undetected by more general culture conditions; Listeria species were found in 73% of mattress dust samples collected from farm children's beds (Korthals et al, 2008b) and mycobacteria were shown to be abundant and diverse in house dust collected from normal residences (Torvinen et al, 2010). The cultivable dust bacteria still remain unexplored; several examples show that the use of appropriate culture method enables the detection of bacteria that have remained undetected by more general culture conditions; Listeria species were found in 73% of mattress dust samples collected from farm children's beds (Korthals et al, 2008b) and mycobacteria were shown to be abundant and diverse in house dust collected from normal residences (Torvinen et al, 2010).…”

Section: Cultivable Diversitymentioning

confidence: 99%

Microbial Communities Associated with House Dust

Rintala

Pitkäranta

Täubel

2012

Advances in Applied Microbiology

100

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Section: Cultivable Diversitymentioning

confidence: 99%

Microbial Communities Associated with House Dust

Rintala

Pitkäranta

Täubel

2012

Advances in Applied Microbiology

100

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“…Examples of bacteria identified in mattress dust include Staphylococcus, Lactobacillus, Streptococcus sp. , Lactococcus, Bacillus sp., Listeria spp., Zoogloea sp., Corynebacterium tuberculostearicum , Moraxella sp., and Staphylococcus sciuri sp., among a host of others (Ege et al., ; Korthals et al., ; Täubel et al., ). Bacterial endotoxin (the biologically active lipopolysaccharide (LPS) of gram‐negative bacteria) levels are typically in the range of 10 3 to 10 5 endotoxin units/g of mattress dust.…”

Section: Introductionmentioning

confidence: 99%

Characterizing particle resuspension from mattresses: chamber study

et al. 2014

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Full-scale chamber experiments with human volunteers demonstrate that body movements in bed can resuspend settled particles from mattresses, leading to elevated airborne particle concentrations in both the breathing zone and bulk air of the chamber. Numerous variables influence resuspension, including particle size and intensity of a specific body movement. The results suggest that human-induced resuspension in the sleep microenvironment may play an important role in contributing to our inhalation exposure to mattress dust pollutants.

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“…1). Using real-time polymerase chain reaction (PCR), Korthals et al (2008) found that 28% of dust specimens from the rural environment were contaminated by L. monocytogenes, demonstrating its potential transfer by air, as well. Lyautey et al (2007) reported a statistically significant link between the occurrence of L. monocytogenes in surface water samples and their proximity to an upstream dairy farm and degree of cropped land.…”

Section: Listeria Monocytogenes In the Dairy Farm Environmentmentioning

confidence: 99%

Review. Dairy farm management and production practices associated with the presence of Listeria monocytogenes in raw milk and beef

Santorum

Garcia

López-Alonso

et al. 2012

Span. j. agric. res.

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Human listeriosis is a severe foodborne disease caused by Listeria monocytogenes. It is a zoonosis that represents a significant concern for the food industry due to the high mortality rate it causes and the fact that the organism is capable of growing at refrigeration temperatures. Dairy products and ready-to-eat meats are among the foods most often involved in listeriosis outbreaks. Listeria is a common contaminant in the dairy environment, both on the farm and in the processing plant. The main sources of L. monocytogenes in dairy farms are manure and improperly fermented silage. If silage crops are grown on contaminated land, a new cycle of silage contamination and faecal shedding by ruminants that consume such silage may ensue. High loads of L. monocytogenes produced in farm environments may thus represent a primary source for the introduction of this pathogen into the human food supply chain; dairy cows would represent a reservoir for the bacterium, and raw milk and beef would represent the main vehicles for its transmission from dairy farms to humans. Even if contamination originates in post-processing environments, contaminated raw foods may still represent a vehicle for introducing L. monocytogenes into food processing plants. Molecular typing methods have confirmed that common strains of L. monocytogenes are present in dairy farm-associated isolates and isolates from both human epidemic and sporadic cases. Pre-harvest (on-farm) control of listeriosis should be based mainly on the control of manure, silage, herd health and milking practices.Additional key words: animal reservoir; dairy primary production; environmental sources; food vehicles; listeriosis. ResumenRevisión. Tipos de gestión y producción de las granjas de ganado vacuno lechero relacionados con la presencia de Listeria monocytogenes en la leche y la carne La listeriosis humana es una grave enfermedad transmitida por alimentos y causada por Listeria monocytogenes. Se trata de una zoonosis que supone una gran preocupación para la industria alimentaria debido a su alta tasa de mortalidad y al hecho de que el microorganismo es capaz de crecer a temperaturas de refrigeración. Listeria es un contaminante habitual en las granjas y plantas de productos lácteos. En las granjas las fuentes principales de L. monocytogenes son el estiércol y los ensilados mal fermentados. Si la cosecha utilizada para producir ensilados procede de campos contaminados, puede comenzar un nuevo ciclo de contaminación de los ensilados y liberación del patógeno en las heces de los animales. El ganado vacuno lechero representa uno de los principales reservorios de este microorganismo y la leche y la carne representarían los principales vehículos para su transmisión desde la granja de producción de leche al ser humano. Incluso cuando la contaminación del alimento procede de etapas posteriores al procesado, los alimentos crudos contaminados también representan uno de los vehículos de entrada de L. monocytogenes en las plan-

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Occurrence of Listeria spp. in mattress dust of farm children in Bavaria

Cited by 14 publications

References 25 publications

Microbial Communities Associated with House Dust

Microbial Communities Associated with House Dust

Characterizing particle resuspension from mattresses: chamber study

Review. Dairy farm management and production practices associated with the presence of Listeria monocytogenes in raw milk and beef

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