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Journal of Clinical Microbiology, April 2005, p. 1587-1593, Vol. 43, No. 4
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.4.1587-1593.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.

Characterization of Borrelia lusitaniae Isolates Collected in Tunisia and Morocco

Hend Younsi,1,{dagger} M'Hammed Sarih,2,{dagger} Fatima Jouda,3 Edmond Godfroid,4 Lise Gern,3 Ali Bouattour,1 Guy Baranton,5 and Daniele Postic5*

Institut Pasteur, Tunis, Tunisia,1 Institut Pasteur du Maroc, Casablanca, Morocco,2 Institut de Zoologie, Université de Neuchâtel, Neuchâtel, Switzerland,3 Université Libre de Bruxelles, Gosselies, Belgium,4 Institut Pasteur, Paris, France5

Received 29 March 2004/ Returned for modification 17 October 2004/ Accepted 7 November 2004

Borrelia lusitaniae is a species within the complex Borrelia burgdorferi sensu lato and is infrequently isolated in Europe. In contrast, this species is by far the most predominant in North Africa and in Portugal. In this study, we analyzed the genetic diversity, at several loci, of a large population of isolates from free-living Ixodes ricinus ticks collected in Tunisia and Morocco. We found a moderate diversity of the whole genome by using pulsed-field gel electrophoresis as well as in the ospA gene sequences, compared to a high level of strain homogeneity in the small noncoding ribosomal spacer. In contrast, a high diversity of this locus has been previously reported for Portuguese isolates. We hypothesize that B. lusitaniae strains isolated in North Africa constitute a clone of Portuguese origin.

* Corresponding author. Mailing address: Laboratoire des Spirochètes, Institut Pasteur, 28 rue du Dr. Roux, 75724 Paris Cedex 15, France. Phone: 33 1 45 68 83 37. Fax: 33 1 40 61 30 01. E-mail: dpostic{at}pasteur.fr.

{dagger} H.Y. and M'H.S. contributed equally to this work.

Journal of Clinical Microbiology, April 2005, p. 1587-1593, Vol. 43, No. 4
0095-1137/05/$08.00+0     doi:10.1128/JCM.43.4.1587-1593.2005
Copyright © 2005, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Poupon, M.-A., Lommano, E., Humair, P.-F., Douet, V., Rais, O., Schaad, M., Jenni, L., Gern, L. (2006). Prevalence of Borrelia burgdorferi Sensu Lato in Ticks Collected from Migratory Birds in Switzerland. Appl. Environ. Microbiol. 72: 976-979 [Abstract] [Full Text]  


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