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Ecology and Transmission of Listeria monocytogenes Infecting Ruminants and in the Farm Environment
ABSTRACT A case-control study involving 24 case farms with at least one recent case of listeriosis and 28 matched control farms with no listeriosis cases was conducted to probe the transmission andExpand
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Tracking of Listeria monocytogenes in smoked fish processing plants.
Four smoked fish processing plants were used as a model system to characterize Listeria monocytogenes contamination patterns in ready-to-eat food production environments. Each of the four plants wasExpand
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Landscape and Meteorological Factors Affecting Prevalence of Three Food-Borne Pathogens in Fruit and Vegetable Farms
ABSTRACT Produce-related outbreaks have been traced back to the preharvest environment. A longitudinal study was conducted on five farms in New York State to characterize the prevalence, persistence,Expand
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Evolution and molecular phylogeny of Listeria monocytogenes isolated from human and animal listeriosis cases and foods.
To probe the evolution and phylogeny of Listeria monocytogenes from defined host species and environments, L. monocytogenes isolates from human (n = 60) and animal (n = 30) listeriosis cases and foodExpand
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Select Listeria monocytogenes Subtypes Commonly Found in Foods Carry Distinct Nonsense Mutations in inlA, Leading to Expression of Truncated and Secreted Internalin A, and Are Associated with a
ABSTRACT The surface protein internalin A (InlA) contributes to the invasion of human intestinal epithelial cells by Listeria monocytogenes. Screening of L. monocytogenes strains isolated from humanExpand
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Revelation by Single-Nucleotide Polymorphism Genotyping That Mutations Leading to a Premature Stop Codon in inlA Are Common among Listeria monocytogenes Isolates from Ready-To-Eat Foods but Not Human
ABSTRACT Listeria monocytogenes utilizes internalin A (InlA; encoded by inlA) to cross the intestinal barrier to establish a systemic infection. Multiple naturally occurring mutations leading to aExpand
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Longitudinal studies on Listeria in smoked fish plants: impact of intervention strategies on contamination patterns.
Four ready-to-eat smoked fish plants were monitored for 2 years to study Listeria contamination patterns and the impact of plant-specific Listeria control strategies, including employee training andExpand
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Listeria monocytogenes fecal shedding in dairy cattle shows high levels of day-to-day variation and includes outbreaks and sporadic cases of shedding of specific L. monocytogenes subtypes.
Fecal shedding of Listeria monocytogenes poses a risk for contamination of animal feed and agricultural environments and raw food at the pre-harvest stages of food production. To be able to reduceExpand
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inlA Premature Stop Codons Are Common among Listeria monocytogenes Isolates from Foods and Yield Virulence-Attenuated Strains That Confer Protection against Fully Virulent Strains
ABSTRACT Previous studies showed that a considerable proportion of Listeria monocytogenes isolates obtained from foods carry a premature stop codon (PMSC) mutation in inlA that leads to production ofExpand
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Molecular characterization of Listeria monocytogenes from natural and urban environments.
Characterization of 80 Listeria monocytogenes isolates from urban and natural environments differentiated 7 and 26 EcoRI ribotypes, respectively. Whereas the majority of isolates from the naturalExpand
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