Presence of a widely disseminated
 Listeria monocytogenes
 serotype 4b clone in India

Barbuddhe, S. B.; Doijad, Swapnil; Goesmann, Alexander; Hilker, Rolf; Poharkar, Krupali V.; Rawool, Deepak B.; Kurkure, N. V.; Malik, S.V.S.; Shakuntala, I.; Chaudhari, S. P.; Waskar, V. S.; D’Costa, Dilecta; Kolhe, R. P.; Arora, Ritu; Roy, Arkaprovo; Raorane, Abhay; Kale, Satyajit B.; Pathak, Ajay; Negi, Mamta; Kaur, Simranpreet; Waghmare, R. M.; Warke, Shubhangi; Shoukat, Shabu; Harish, Belgode Narasimha; Poojary, Aruna; Madhavaprasad, Chakodabail; Nagappa, K.; Das, Samir Kumar; Zende, R. J.; Garg, Suresh; Bhosle, Saroj; Radriguez, Savio; Paturkar, A. M.; Fritzenwanker, Moritz; Ghosh, Hiren; Hain, Torsten; Chakraborty, Trinad

doi:10.1038/emi.2016.55

Cited by 17 publications

(18 citation statements)

References 9 publications

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“…Studies on L. monocytogenes in faeces of zoo animals and birds from India are scanty and there is great dearth of research on understanding the molecular epidemiology and ecological niche of L. monocytogenes in diverse environments. The present study showed the presence of virulent L. monocytogenes in captive wild animals and peridomestic birds harbouring similar serotype as that reported earlier to be predominant in the Indian subcontinent 28 . Further studies are warranted to understand the sources and diversity of Listeria species in newer niches.…”

supporting

confidence: 66%

Isolation of Listeria monocytogenes from Peridomestic Birds and Captive Wild Animals

et al. 2017

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supporting

confidence: 66%

Isolation of Listeria monocytogenes from Peridomestic Birds and Captive Wild Animals

et al. 2017

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“…In addition to this geographical trends have previously been reported in relation to the L. monocytogenes population structure; for example in India a ST328 clone has been identified as widely disseminated among multiple sources including clinical cases (Barbuddhe et al, 2016). Interestingly in this study, ST204 was identified as the third most common ST with isolates from both clinical and a range of non-clinical sources.…”

Section: Discussionmentioning

confidence: 60%

“…Temporal analysis of both clinical and non-clinical surveillance data can allow monitoring of the occurrence of individual strain sub-types or epidemic clones over time, and provides improved understanding of potential risk of disease, and where corrective efforts may be directed. Recent studies have provided insights into global, continental and/or national trends in this area, such as the association of ST121 to food sources, the predominance of CC2 and CC1 globally and association of CC1 with outbreaks of disease, or the dominance of the ST328 subgroup in India (Chenal-Francisque et al, 2011; Haase et al, 2013; Yin et al, 2015; Barbuddhe et al, 2016; Maury et al, 2016). In addition to this, genomic analysis can provide insights into characteristics such as strain virulence.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Listeria monocytogenes Population Structure among Isolates from 1931 to 2015 in Australia

et al. 2017

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Listeriosis remains among the most important bacterial illnesses, with a high associated mortality rate. Efforts to control listeriosis require detailed knowledge of the epidemiology of the disease itself, and its etiological bacterium, Listeria monocytogenes. In this study we provide an in-depth analysis of the epidemiology of 224 L. monocytogenes isolates from Australian clinical and non-clinical sources. Non-human sources included meat, dairy, seafood, fruit, and vegetables, along with animal and environmental isolates. Serotyping, Multi-Locus Sequence Typing, and analysis of inlA gene sequence were performed. Serogroups IIA, IIB, and IVB comprised 94% of all isolates, with IVB over-represented among clinical isolates. Serogroup IIA was the most common among dairy and meat isolates. Lineage I isolates were most common among clinical isolates, and 52% of clinical isolates belonged to ST1. Overall 39 STs were identified in this study, with ST1 and ST3 containing the largest numbers of L. monocytogenes isolates. These STs comprised 40% of the total isolates (n = 90), and both harbored isolates from clinical and non-clinical sources. ST204 was the third most common ST. The high prevalence of this group among L. monocytogenes populations has not been reported outside Australia. Twenty-seven percent of the STs in this study contained exclusively clinical isolates. Analysis of the virulence protein InlA among isolates in this study identified a truncated form of the protein among isolates from ST121 and ST325. The ST325 group contained a previously unreported novel mutation leading to production of a 93 amino acid protein. This study provides insights in the population structure of L. monocytogenes isolated in Australia, which will contribute to public health knowledge relating to this important human pathogen.

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“…Interestingly, L. monocytogenes MLST type ST328 is rarely isolated in Australia, where ST1, ST3, and ST204 dominate [ 40 , 42 ]. MLST type ST328 is highly abundant among strains isolated in India [ 64 ]. Further analysis of CC1 isolates from different global regions showed both resistant isolates in this study clustered closely with the isolates from India (clade A, Figure 4 ).…”

Section: Discussionmentioning

confidence: 99%

Phenotypic and Genotypic Analysis of Antimicrobial Resistance among Listeria monocytogenes Isolated from Australian Food Production Chains

Wilson

Gray

Chandry

et al. 2018

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The current global crisis of antimicrobial resistance (AMR) among important human bacterial pathogens has been amplified by an increased resistance prevalence. In recent years, a number of studies have reported higher resistance levels among Listeria monocytogenes isolates, which may have implications for treatment of listeriosis infection where resistance to key treatment antimicrobials is noted. This study examined the genotypic and phenotypic AMR patterns of 100 L. monocytogenes isolates originating from food production supplies in Australia and examined this in the context of global population trends. Low levels of resistance were noted to ciprofloxacin (2%) and erythromycin (1%); however, no resistance was observed to penicillin G or tetracycline. Resistance to ciprofloxacin was associated with a mutation in the fepR gene in one isolate; however, no genetic basis for resistance in the other isolate was identified. Resistance to erythromycin was correlated with the presence of the ermB resistance gene. Both resistant isolates belonged to clonal complex 1 (CC1), and analysis of these in the context of global CC1 isolates suggested that they were more similar to isolates from India rather than the other CC1 isolates included in this study. This study provides baseline AMR data for L. monocytogenes isolated in Australia, identifies key genetic markers underlying this resistance, and highlights the need for global molecular surveillance of resistance patterns to maintain control over the potential dissemination of AMR isolates.

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Presence of a widely disseminated Listeria monocytogenes serotype 4b clone in India

Cited by 17 publications

References 9 publications

Isolation of <i>Listeria monocytogenes</i> from Peridomestic Birds and Captive Wild Animals

Isolation of <i>Listeria monocytogenes</i> from Peridomestic Birds and Captive Wild Animals

Analysis of the Listeria monocytogenes Population Structure among Isolates from 1931 to 2015 in Australia

Phenotypic and Genotypic Analysis of Antimicrobial Resistance among Listeria monocytogenes Isolated from Australian Food Production Chains

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