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Applied and Environmental Microbiology, April 2006, p. 3074-3078, Vol. 72, No. 4
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.4.3074-3078.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Prevalence of Borrelia burgdorferi Sensu Lato and Anaplasmataceae Members in Ixodes ricinus Ticks in Alsace, a Focus of Lyme Borreliosis Endemicity in France

Elisabeth Ferquel,1 Martine Garnier,1 Jérôme Marie,1,{dagger} Claire Bernède-Bauduin,2,3 Guy Baranton,1 Claudine Pérez-Eid,1 and Danièle Postic1*

Laboratoire des Spirochètes,1 Centre de Ressources en Biostatistiques, Epidémiologie et Pharmaco-Epidémiologie,2 INSERM U657,Institut Pasteur, 75724 Paris, France3

Received 6 December 2005/ Accepted 9 February 2006

Due to the high Lyme borreliosis incidence in Alsace, in northeastern France, we investigated in 2003-2004 three cantons in this region in order to determine the density of Ixodes ricinus ticks infected by Borrelia burgdorferi sensu lato and Anaplasmataceae. The peak density of nymphs infected by B. burgdorferi sensu lato at Munster and Guebwiller, where the disease incidence was high, was among the highest reported in Europe (105 and 114 per 100 m2, respectively). In contrast, the peak density of infected nymphs was low in the canton of Dannemarie (5/100 m2), where the disease incidence was low. The two main species detected in ticks were Borrelia afzelii, more frequent in nymphs, and Borrelia garinii, more frequent in adult ticks. The rates of tick infection by Anaplasma phagocytophilum were 0.4% and 1.2% in nymphs and adults, respectively.


* 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} Present address: Institut Louis Malardé, 98713 Papeete, Tahiti.


Applied and Environmental Microbiology, April 2006, p. 3074-3078, Vol. 72, No. 4
0099-2240/06/$08.00+0     doi:10.1128/AEM.72.4.3074-3078.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.