| Literature DB >> 18847381 |
Vishal Singh Parihar1, 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, Håkan Ringberg, Jocelyne Rocourt, Ingela Tjernberg, Jan Ursing, Birgitta Henriques-Normark, Wilhelm Tham.
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.Entities:
Mesh:
Year: 2008 PMID: 18847381 DOI: 10.1089/fpd.2008.0123
Source DB: PubMed Journal: Foodborne Pathog Dis ISSN: 1535-3141 Impact factor: 3.171