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  • Title: [Risk of contamination by Borrelia burgdorferi S. lato in a forest environment. Survey during 13 months of abundance of the tick Ixodes ricinus and its level of infestation by the Lyme borreliosis agent in Brittany].
    Author: Doby JM, Bigaignon G, Doby-Dubois M.
    Journal: Bull Soc Pathol Exot; 1995; 88(1):61-4; discussion 65. PubMed ID: 7787457.
    Abstract:
    The authors, in a forest in Brittany previously studied for several years, caught by flagging, each month from April 1992 to May 1993, nymphs of I. ricinus tick, and looked by indirect immunofluorescence, for B. burgdorferi infestation. An amount of 1,506 ticks was thus studied. Infestation frequency was varying from 0 per cent in January and February to 14.4 per cent in August. Standarding of tick collecting method allowed to establish, for each month, a tick, "availability" index, and, according to the spirochete infestation frequency, to do estimation of the risk level, for human visiting the concerned forest, of being infected by B. burgdorferi. Obtained results show that this risk is the highest in August, and quite non-existent in January and February.
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