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Implicated Food Products for Listeriosis and Changes in Serovars of Listeria monocytogenes Affecting Humans in Recent Decades

Foodborne pathogens and disease, 2018-07, Vol.15 (7), p.387-397 [Peer Reviewed Journal]

ISSN: 1535-3141 ;ISSN: 1556-7125 ;EISSN: 1556-7125 ;DOI: 10.1089/fpd.2017.2419 ;PMID: 29958028

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  • Title:
    Implicated Food Products for Listeriosis and Changes in Serovars of Listeria monocytogenes Affecting Humans in Recent Decades
  • Author: Lopez-Valladares, Gloria ; Danielsson-Tham, Marie-Louise ; Tham, Wilhelm
  • Subjects: Culinary Arts and Meal Science ; hospital ; listeriosis ; Måltidskunskap ; RTE foods ; serovar
  • Is Part Of: Foodborne pathogens and disease, 2018-07, Vol.15 (7), p.387-397
  • Description: Listeriosis is a foodborne disease with a high fatality rate, and infection is mostly transmitted through ready-to-eat (RTE) foods contaminated with Listeria monocytogenes, such as gravad/smoked fish, soft cheeses, and sliced processed delicatessen (deli) meat. Food products/dishes stored in vacuum or in modified atmospheres and with extended refrigerator shelf lives provide an opportunity for L. monocytogenes to multiply to large numbers toward the end of the shelf life. Elderly, pregnant women, neonates, and immunocompromised individuals are particularly susceptible to L. monocytogenes. Listeriosis in humans manifests primarily as septicemia, meningitis, encephalitis, gastrointestinal infection, and abortion. In the mid 1990s and early 2000s a shift from L. monocytogenes serovar 4b to serovar 1/2a causing human listeriosis occurred, and serovar 1/2a is becoming more frequently linked to outbreaks of listeriosis, particularly in Europe and Northern America. Consumer lifestyle has changed, and less time is available for food preparation. Modern lifestyle has markedly changed eating habits worldwide, with a consequent increased demand for RTE foods; therefore, more RTE and take away foods are consumed. There is a concern that many Listeria outbreaks are reported from hospitals. Therefore, it is vitally important that foods (especially cooked and chilled) delivered to hospitals and residential homes for senior citizens and elderly people are reheated to at least 72°C: cold food, such as turkey deli meat and cold-smoked and gravad salmon should be free from L. monocytogenes. Several countries have zero tolerance for RTE foods that support the growth of Listeria.
  • Publisher: United States
  • Language: English
  • Identifier: ISSN: 1535-3141
    ISSN: 1556-7125
    EISSN: 1556-7125
    DOI: 10.1089/fpd.2017.2419
    PMID: 29958028
  • Source: Alma/SFX Local Collection
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