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Characterization of human invasive isolates of Listeria monocytogenes in Sweden 1986-2007.

https://arctichealth.org/en/permalink/ahliterature154770
Source
Foodborne Pathog Dis. 2008 Dec;5(6):755-61
Publication Type
Article
Date
Dec-2008
Author
Vishal Singh Parihar
Gloria Lopez-Valladares
Marie-Louise Danielsson-Tham
Inoka Peiris
Seved Helmersson
Magnus Unemo
Birgitta Andersson
Malin Arneborn
Elizabeth Bannerman
Sukdevo Barbuddhe
Jacques Bille
Lajos Hajdu
Christine Jacquet
Christina Johansson
Margareta Löfdahl
Gunnel Möllerberg
HÃ¥kan Ringberg
Jocelyne Rocourt
Ingela Tjernberg
Jan Ursing
Birgitta Henriques-Normark
Wilhelm Tham
Author Affiliation
Department of Restaurant and Culinary Arts, Orebro University, Grythyttan, Sweden.
Source
Foodborne Pathog Dis. 2008 Dec;5(6):755-61
Date
Dec-2008
Language
English
Publication Type
Article
Keywords
Cluster analysis
Electrophoresis, Gel, Pulsed-Field
Food contamination - analysis
Food Microbiology
Humans
Listeria monocytogenes - classification - pathogenicity
Listeriosis - microbiology
Phylogeny
Retrospective Studies
Serotyping
Sweden
Abstract
Since 1986, 68% of the Listeria monocytogenes isolates from human cases of invasive listeriosis in Sweden are available for retrospective studies. The aim of the present study was to characterize 601 human invasive isolates of L. monocytogenes in Sweden from 1986 to 2007 by using serotyping and pulsed-field gel electrophoresis. Since 1996, serovar 4b was permanently reduced to the second or third most common serovar in human cases in Sweden. During the latter period, 2000-2007, only 13% belonged to serovar 4b and 71% to 1/2a. The dendrogram, based on pulsovars, reveals two clusters with different serovars. Cluster 1 exhibits serovars 4b and 1/2b, whereas cluster 2 consists of serovar 1/2a. Serovar 1/2a seems to be more heterogeneous than serovar 4b.
PubMed ID
18847381 View in PubMed
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Lineage II (Serovar 1/2a and 1/2c) Human Listeria monocytogenes Pulsed-Field Gel Electrophoresis Types Divided into PFGE Groups Using the Band Patterns Below 145.5?kb.

https://arctichealth.org/en/permalink/ahliterature286546
Source
Foodborne Pathog Dis. 2017 Jan;14(1):8-16
Publication Type
Article
Date
Jan-2017
Author
Gloria Lopez-Valladares
Marie-Louise Danielsson-Tham
Richard V Goering
Wilhelm Tham
Source
Foodborne Pathog Dis. 2017 Jan;14(1):8-16
Date
Jan-2017
Language
English
Publication Type
Article
Keywords
DNA, Bacterial - isolation & purification
Disease Outbreaks
Electrophoresis, Gel, Pulsed-Field
Food contamination - analysis
Food Microbiology
Foodborne Diseases - diagnosis - epidemiology - microbiology
Humans
Listeria monocytogenes - classification - isolation & purification
Listeriosis - diagnosis - epidemiology
Multilocus Sequence Typing
Serogroup
Serotyping
Sweden
Abstract
Among 504 clinical lineage II isolates of Listeria monocytogenes isolated during 1958-2010 in Sweden, 119 pulsed-field gel electrophoresis (PFGE) types (AscI) have been identified based on the number and distribution of all banding patterns in each DNA profile. In this study, these types were further divided into PFGE groups based on the configuration of small bands with sizes 145.5?kb.
PubMed ID
27860487 View in PubMed
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