Characterization of Human Invasive Isolates ofListeria monocytogenesin Sweden 1986–2007
| Autor: | Magnus Unemo, Gunnel Möllerberg, Jocelyne Rocourt, Lajos Hajdu, Gloria Lopez-Valladares, Håkan Ringberg, Christine Jacquet, Birgitta Henriques-Normark, Margareta Löfdahl, Marie-Louise Danielsson-Tham, Malin Arneborn, Jan Ursing, Christina Johansson, Seved Helmersson, Inoka Priyadarshani Peiris, Jacques Bille, Sukhadeo B. Barbuddhe, Elizabeth Bannerman, Birgitta Andersson, Vishal Singh Parihar, Ingela Tjernberg, Wilhelm Tham |
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| Rok vydání: | 2008 |
| Předmět: |
Sweden
Food Contamination Biology medicine.disease_cause Listeria monocytogenes Applied Microbiology and Biotechnology Microbiology humanities Electrophoresis Gel Pulsed-Field Food Microbiology medicine Cluster Analysis Humans Listeriosis Animal Science and Zoology Invasive Listeriosis Serotyping Phylogeny Retrospective Studies Food Science |
| Zdroj: | Foodborne Pathogens and Disease. 5:755-761 |
| ISSN: | 1556-7125 1535-3141 |
| DOI: | 10.1089/fpd.2008.0123 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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