European distribution of Borrelia burgdorferi in questing I. ricinus ticks

Figure Created 05 Oct 2012 Published 21 Nov 2012 Last modified 21 Dec 2016
The risks described in this figure are relative to each other according to a standard distribution scale. Risk is defined as the probability of finding nymphal ticks positive for Borrelia burgdorferi. For each prevalence quartile, associated climate traits were used to produce a qualitative evaluation of risk according to Office International des Epizooties (OIE) standards at five levels (high, moderate, low, negligible, and null), which directly correlate with the probability of finding nymphal ticks with prevalence in the four quartiles.


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