Epidemiology of human listeriosis and seafoods

Rocourt, J.; Jacquet, Christine; Reilly, Amanda

doi:10.1016/s0168-1605(00)00336-6

Cited by 193 publications

(133 citation statements)

References 78 publications

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“…Neonatal infections, occurring 1-3 weeks after birth, often present with meningitis. Other populations at risk include adults with underlying disease such as cancer, HIV infection, chronic hepatic disorders, and diabetes [83]. Individuals at particular risk include those with abnormalities in T-cell-mediated immunity, such as patients with solid organ or bone marrow transplants who are receiving adrenal corticosteroids [80].…”

Section: Enteric Infectionsmentioning

confidence: 99%

Important emerging bacterial zoonotic infections affecting the immunocompromised

2005

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-The immunocompromised are at particular risk for infection with zoonotic diseases. Persons can be temporarily immunocompromised due to pregnancy or developmental stage (i.e. infants); longer-term or permanent states of immunosuppression can occur as a result of immunosuppressive treatment following cancer or organ transplant, or from infectious diseases, such as AIDS. The focus of this review article is on emerging bacterial zoonotic diseases that are of particular concern among the immunocompromised. Factors that affect disease emergence can include factors such as human demographics and behavior; technology and industry; economic development and land use; international travel and commerce; microbial adaptation and change; and breakdown of public health measures. The immunocompromised need to take precautions when engaging in seemingly normal activities such as food preparation; caring for companion animals; and recreational or occupational activities. The immunocompromised are not only more susceptible to infection, but often suffer more serious sequelae as a result of infection. This review article provides an overview of the major foodborne, respiratory, and vector-borne bacterial pathogens that affect the immunocompromised. The major categories of immunodeficiency are described. In addition, measures that can be taken to prevent infection, including the role of health education, are discussed.

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Section: Enteric Infectionsmentioning

confidence: 99%

Important emerging bacterial zoonotic infections affecting the immunocompromised

2005

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“…frequent exposure of the population to this bacterium (Notermans et al, 1998), the probability of contracting listeriosis is low, since the incidence of the disease ranges from 1n6 to 6 cases per million population (Rocourt et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the pathogenic potential of two Listeria monocytogenes human faecal carriage isolates The GenBank accession number for the sequence reported in this paper is AF468816.

Olier¹,

Pierre²,

Lemaı̂tre³

et al. 2002

Microbiology

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Two human faeces carriage isolates of Listeria monocytogenes (H1 and H2) were compared to reference strains (ScottA and LO28) with regard to their lethality in 14-day-old chick embryos, their haemolytic and phospholipase (phosphatidylcholine-phospholipase C and phosphatidylinositol-phospholipase C) activities and their invasiveness towards Caco-2 cells. Experimental infection of chick embryos allowed discrimination of the strains into those exhibiting high virulence (ScottA and H2), those exhibiting slightly attenuated virulence (LO28) and those exhibiting low virulence (H1). A similar percentage mortality and time to death for embryos was observed when they were infected with H2 as was seen with infection by the reference strain ScottA. Therefore, human carriage strain H2 was considered potentially pathogenic. In contrast to H2 and ScottA, H1 exhibited low virulence. Using the tissue-culture cell-line model, it was found that carriage strain H1 was unable to enter Caco-2 cells efficiently, even though it was similar to the virulent strains in terms of the enzymic activities involved in pathogenicity. Detection of the internalins InlA and InlB, involved in the internalization of L. monocytogenes in the host cells, by immunoblot indicated that a truncated form of InlA was produced by H1. Taken together, these data provide a starting point for the study of the behaviour of two types of human faeces carriage strains and their characterization.

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“…Its public health significance lies in its ubiquitous nature that is manifested in its host range, which includes 40 mammals, 20 birds, crustaceans, ticks and fishes [1]. Multiple key virulence factors, such as internalins (encoded by inlA and inlB), hemolysin (hlyA), phosphatidylinositol-specific phospholipase C (PI-PLC, plcA), phosphatidylicholin-specific phospholipase C (PC-PLC, plcB) and actin polymerization protein (actA) are important in L. monocytogenes pathogenesis [2]. Although L. monocytogenes is a non sporulating bacterium, it is resistant to different environmental conditions, including acid pH, high NaCl concentration, microaerophilia and refrigeration temperatures [3] with mortality rates on an average approaching 30%, L. monocytogenes far exceeds other common foodborne pathogens, such as Salmonella enteritidis [4,5].…”

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confidence: 99%

Isolation and Confirmation of Listeria Species from Seafood off Goa Region by Polymerase Chain Reaction

2010

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Several food borne outbreaks have highlighted the importance of Listeria monocytogenes to the public health and have been recognized as an emerging, important food borne pathogen, and a causative agent of listerioses. A number of genes are involved in the manifestation of Listeria virulence, hlyA is one among them. In the present study, 111 marine fish samples including prawns, finfishes and bivalves were screened for the presence of Listeria species. The isolates were characterized biochemically and further L. monocytogenes were confirmed by polymerase chain reaction (PCR) technique using the hlyA gene as a tool to differentiate between L. monocytogenes and other non-pathogenic Listeria species. Out of 111 samples 5 (4.5%) samples were positive for L. monocytogenes. Among the three different types of samples bivalves were found to have maximum percent (12.5) of L. monocytogenes followed by prawns (3.84) and finfishes (2.9). Among all the 111 samples, 15 (13.51%) samples were positive for other Listeria species. It was observed that Listeria occurrence is more in shellfishes than in fin fishes. All the isolates were sensitive towards five different antibiotics in sequence ciprofloxacin [ sulphafurazole [ norfloxacin [ ampicillin and gentamicin.

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Epidemiology of human listeriosis and seafoods

Cited by 193 publications

References 78 publications

Important emerging bacterial zoonotic infections affecting the immunocompromised

Important emerging bacterial zoonotic infections affecting the immunocompromised

Assessment of the pathogenic potential of two Listeria monocytogenes human faecal carriage isolates The GenBank accession number for the sequence reported in this paper is AF468816.

Isolation and Confirmation of Listeria Species from Seafood off Goa Region by Polymerase Chain Reaction

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