Distribution of serotypes and pulsotypes of Listeria monocytogenes from human, food and environmental isolates (Italy 2002–2005)

Gianfranceschi, Monica Virginia; D'Ottavio, Maria Claudia; Gattuso, Antonietta; Bella, Antonino; Aureli, Paolo

doi:10.1016/j.fm.2009.03.003

Cited by 59 publications

(40 citation statements)

References 25 publications

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“…This was also seen with isolates IrlLm019 and IrlLm221 (serotypes 3a and 1/2, respectively). Other studies have found similar indistinguishable PFGE types among isolates with different serotypes and the same genetic lineage (Gianfranceschi et al, 2009;Chen et al, 2010 et al, 1995). Although no food source was implicated for the human isolates from Ireland, both the USA and Swiss outbreaks were linked to soft cheese.…”

Section: E M Fox and Others 542mentioning

confidence: 73%

“…Ten of the clusters included both human and non-human isolates (three of serotype 1/2 and seven of serotype 4b). Indistinguishable PFGE types among isolates of human and non-human origin have been identified in previous studies (Fugett et al, 2007;Gianfranceschi et al, 2009). Although taken in isolation, data such as these cannot determine a source of infection; however, these data are valuable, in combination with epidemiological evidence, in pointing out likely sources of infection and may help identify the source of an outbreak (Fugett et al, 2007).…”

Section: Resultsmentioning

confidence: 90%

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PFGE analysis of Listeria monocytogenes isolates of clinical, animal, food and environmental origin from Ireland

Fox

DeLappe

Garvey

et al. 2012

Journal of Medical Microbiology

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Section: E M Fox and Others 542mentioning

confidence: 73%

Section: Resultsmentioning

confidence: 90%

PFGE analysis of Listeria monocytogenes isolates of clinical, animal, food and environmental origin from Ireland

Fox

DeLappe

Garvey

et al. 2012

Journal of Medical Microbiology

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“…Nevertheless, for epidemiological monitoring of food and human isolates, serotyping is still required as a first level of discrimination [9]. Although 13 serovars are described for the species L. monocytogenes [10], at least 95% of the strains isolated from clinical and food samples belong to serovars 1/2a, 1/2b, 1/2c and 4b [2,11,12].…”

Section: Listeria Monocytogenes (L Monocytogenes) Is Amentioning

confidence: 99%

Listeria monocytogenes serotypes in human infections (Italy, 2000-2010)

Pontello

Guaita

Sala

et al. 2012

Annali Dell'Istituto Superiore Di Sanità

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Abstract.Background. In developed countries invasive listeriosis is an infection of great concern to public health to due its clinical severity and high fatality rate, despite its low incidence. In Europe, statistically significant increasing trends in listeriosis notification rates from 2005 to 2009 were noted in Austria, Denmark, Hungary, Italy, Spain and Sweden. Materials and methods. The standardized techniques based on phenotype to typing Listeria monocytogenes is the serotyping. In Europe, as elsewhere in the world, about 95% of L. monocytogenes strains isolated from clinical and food samples belongs to serovars 1/2a, 1/2b, 1/2c and 4b. Results. The target of this work is to draw attention to this important and atypical foodborne disease, reporting epidemiological data and serotypes distribution of 251 human L. monocytogenes isolates reported during 2000-2010 to Veterinary Public Health and Food Safety Department of Istituto Superiore di Sanità, focusing on epidemiological trend of invasive listeriosis in Lombardia, a North Italian Region. The serotypes most frequently identified are 1/2a, 4b, 1/2b (in total 92%), but the detection of uncommon serotypes is not missing (1/2c, 3a, 3b, 4d). Conclusions. In Italy the surveillance laboratory network, as well as the foodborne disease network (ENTER-NET), has revealed in the last 11 years an increase trend of listeriosis cases reported likewise with results of Notificable National Infectious Disease surveillance System. This is probably due to a real increase of listeriosis, even if there is a greater sensitivity of the network in some regions.Key words: Listeria monocytogenes, serotypes, surveillance. (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010). Introduzione. Nei Paesi industrializzati, nonostante la sua bassa incidenza la listeriosi invasiva è un'infezione alimentare di grande impatto per la salute pubblica, a causa della gravità delle sue manifestazioni cliniche e dell'alto tasso di letalità. In Europa, fra il 2005 e il 2009, sono stati notati incrementi, statisticamente significativi, delle notifiche di listeriosi in Austria, Danimarca, Ungheria, Italia, Spagna e Svezia. Materiali e metodi. Dal punto di vista fenotipico la tipizzazione sierologica rappresenta la tecnica più tradizionale per classificare gli stipiti di Listeria monocytogenes. In Europa come nel resto del mondo, il 95% circa dei ceppi di L. monocytogenes isolati da campioni clinici e alimentari appartengono ai sierotipi 1/2a, 1/2b, 1/2c e 4b. Risultati. L'obiettivo di questo studio è quello di attirare l'attenzione su questa grave e atipica malattia alimentare, riportando i dati epidemiologici e la distribuzione dei sierotipi, relativamente a 251 stipiti raccolti nel periodo 2000-2010, dal Dipartimento di Sanità Pubblica Veterinaria e Sicurezza Alimentare dell'Istituto Superiore di Sanità, focalizzando l'attenzione sui dati provenienti dalla Regione Lombardia. I sierotipi più frequentemente identificati sono 1/2a, 4b, 1/2b (per un complessivo 92%) ma non è mancato il risc...

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“…There are indications of interstrain differences regarding virulence and transmission (Nightingale et al, 2004;Hain et al, 2007;Ragon et al, 2008). Serotyping was the first method developed for subtype discrimination of L. monocytogenes and has uncovered that the vast majority of human and animal infections are caused by only three different serotypes: 1/2a, 1/2b, and 4b (Okwumabua et al, 2005;Gianfranceschi et al, 2009;Lopez-Valladares et al, 2014;). These were also the most prevalent serotypes isolated from food and infected humans in Switzerland during the last decades (Pak et al, 2002;Bille, 2004;Althaus et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, there is a strong need to gather more information on strain-specific virulence by systematic correlation of genotypic/phenotypic strain data to the clinical context of isolation and to virulence data derived from infection models. Smallscale studies have been performed in several countries with an array of subtyping techniques (Sauders et al, 2004;Lyytikäinen et al, 2006;Gianfranceschi et al, 2009), making it difficult to compare data between studies. Therefore, the future strategy should focus on largescale multi-laboratory studies applying a subtyping technique that allows sharing and exchanging data between laboratories.…”

Section: Introductionmentioning

confidence: 99%

Listeria monocytogenes infection in ruminants: Is there a link to the environment, food and human health? A review

Walland¹,

Lauper²,

Frey³

et al. 2015

SAT

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Listeria (L.) monocytogenes is widely distributed in the environment, but also has the ability to cause serious invasive disease in ruminants and humans. This review provides an overview of listeriosis in ruminants and discusses our insufficient understanding of reservoirs and possible cycling ofL. monocytogenes between animal and human hosts, food and the environment. It indicates gaps in our knowledge of the role of genetic subtypes in L. monocytogenes ecology and virulence as well as risk factors, in vivo diagnostics and pathogenesis of listeriosis in ruminants. Filling these gaps will contribute to improving the control of L. monocytogenes and enhancing disease prevention. As the prevalence of listeriosis in ruminants in Switzerland is likely to be underestimated, propositions concerning improvement options for surveillance of listeriosis in ruminants are provided. Summary Listeria (L.) monocytogenes is widely distributed in the environment, but also has the ability to cause serious invasive disease in ruminants and humans. This review provides an overview of listeriosis in ruminants and discusses our insufficient understanding of reservoirs and possible cycling of L. monocytogenes between animal and human hosts, food and the environment. It indicates gaps in our knowledge of the role of genetic subtypes in L. monocytogenes ecology and virulence as well as risk factors, in vivo diagnostics and pathogenesis of listeriosis in ruminants. Filling these gaps will contribute to improving the control of L. monocytogenes and enhancing disease prevention. As the prevalence of listeriosis in ruminants in Switzerland is likely to be underestimated, propositions concerning improvement options for surveillance of listeriosis in ruminants are provided.

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Distribution of serotypes and pulsotypes of Listeria monocytogenes from human, food and environmental isolates (Italy 2002–2005)

Cited by 59 publications

References 25 publications

PFGE analysis of Listeria monocytogenes isolates of clinical, animal, food and environmental origin from Ireland

PFGE analysis of Listeria monocytogenes isolates of clinical, animal, food and environmental origin from Ireland

Listeria monocytogenes serotypes in human infections (Italy, 2000-2010)

Listeria monocytogenes infection in ruminants: Is there a link to the environment, food and human health? A review

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