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The paradox of the binomial Ixodes ricinus activity and the observed unimodal Lyme borreliosis season in Hungary

Trájer, Attila János and Bede-Fazekas, Ákos and Bobvos, János and Páldy, Anna and Hufnagel, Levente (2013) The paradox of the binomial Ixodes ricinus activity and the observed unimodal Lyme borreliosis season in Hungary. International Journal of Environmental Health Research, 24 (3). pp. 226-245. DOI 10.1080/09603123.2013.807329

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Official URL: http://www.tandfonline.com/doi/abs/10.1080/09603123.2013.807329


Abstract

The change of ambient temperature plays a key role in determining the run of the annual Lyme season. Our aim was to explain the apparent contradiction between the annual unimodal Lyme borreliosis incidence and the bimodal Ixodes ricinus tick activity run – both observed in Hungary – by distinguishing the temperaturedependent seasonal human and tick activity, the temperature-independent factors, and the multiplicative effect of human outdoor activity in summer holiday, using data from Hungary in the period of 1998–2012. This separation was verified by modeling the Lyme incidence based on the separated factors, and comparing the run of the observed and modeled incidence. We demonstrated the bimodality of tick season by using the originally unimodal Lyme incidence data. To model the outdoor human activity, the amount of camping guest nights was used, which showed an irregular run from mid-June to September. The human outdoor activity showed a similar exponential correlation with ambient temperature to that what the relative incidence did. It was proved that summer holiday has great influence on Lyme incidence.

Item Type:Article
Uncontrolled Keywords:Ixodes ricinus; tick activity; Lyme borreliosis disease; bimodality; temperature dependence
Subjects:Ecology
Projects:TÁMOP-4.2.1/B-09/1/KMR-2010-0005
DOI:10.1080/09603123.2013.807329
ID Code:1559
Deposited By: Z. S.
Deposited On:16 Jul 2014 12:11
Last Modified:16 Jul 2014 12:11

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