DYNAMICS OF HUMAN PRIMARY-INFESTATION WIT H LYME BORRELIOSIS (ERYTHEMA-CHRONICUM-MIGRANS) AND DYNAMICS OF VECTOR TICK POPULATIONS (IXODES-RICINUS LINNE, 1758) - ATTEMPT AT CORRELATION
B. Degeilh et al., DYNAMICS OF HUMAN PRIMARY-INFESTATION WIT H LYME BORRELIOSIS (ERYTHEMA-CHRONICUM-MIGRANS) AND DYNAMICS OF VECTOR TICK POPULATIONS (IXODES-RICINUS LINNE, 1758) - ATTEMPT AT CORRELATION, Acarologia, 37(1), 1996, pp. 7-17
The authors proposed to verify if the largest number of cases of Eryth
ema Chronicum Migrans (E.C.M.) (initial symptom of Lyme borreliosis) s
eems to be directly related to the culminating point of the vector tic
k population in France, where the principal vector of this disease is
Ixodes vicinus Linne, 1758. In order to do this, an attempt was made t
o establish a comparison between the nosological and acarological data
(fluctuation of the tick population) by using published data. Given t
hat the acarological bases, in particular, were insufficient, addition
al information was correlation between E.C.M. and culminating point of
Ixodes ''dammini'' populations would have been observed, the nymphal
stage also being incriminated. This fact demonstrates that the size of
the vector populations is not the only cause and that other factors c
an intervene in a predominant manner (degrees of aggressiveness in tic
k populations, degrees of the frequency of infestation of the tick by
Borrelia burgdorferi during the year and the intensity of the contact
between man and vector, etc...).