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Predominance of L. monocytogenes Lineage I Clones in Wastewater, Ruminants, and Natural EnvironmentsNARA Subscribed
Listeria monocytogenes is a saprophytic bacterium and a foodborne pathogen of humans and animals. Little is known about its distribution and genetic diversity across different environments within the same geographical region. We conducted a large‐scale longitudinal study in southeastern Spain monitoring Listeria spp. in untreated wastewater, ruminant farms, and natural environments over four seasons ( N = 1490 samples, N = 545...
Summary Studies have shown that ruminants constitute reservoirs of Listeria monocytogenes , but little is known about the epidemiology and genetic diversity of this pathogen within farms. Here we conducted a large‐scale longitudinal study to monitor Listeria spp. in 19 dairy farms during three consecutive seasons ( N = 3251 samples). L . innocua was the most prevalent species, followed by L . monocytogenes . Listeria monocytog...
Whole‐genome sequencing reveals Listeria monocytogenes diversity and allows identification of long‐term persistent strains in BrazilNARA Subscribed
Summary Advances in whole‐genome sequencing (WGS) technologies have documented genetic diversity and epidemiology of the major foodborne pathogen Listeria monocytogenes ( Lm ) in Europe and North America, but data concerning South America are scarce. Here, we examined the population structure and genetic diversity of this major foodborne pathogen collected in Brazil. Based on core genome multilocus sequence typing (cgMLST), is...
The ubiquitous nature of L isteria monocytogenes clones: a large‐scale M ultilocus S equence T yping studyNARA Subscribed
Summary L isteria monocytogenes is ubiquitously prevalent in natural environments and is transmitted via the food chain to animals and humans, in whom it can cause life‐threatening diseases. We used M ultilocus S equence T yping ( MLST ) of ∼2000 isolates of L . monocytogenes to investigate whether specific associations existed between clonal complexes ( CCs ) and the environment versus diseased hosts. Most CCs (72%) were not...
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