期刊名称：Annals of Agricultural and Environmental Medicine
印刷版ISSN：1232-1966
电子版ISSN：1898-2263
出版年度：2018
卷号：25
期号：4
页码：1-3
DOI：10.26444/aaem/94673
出版社：Institute of Agricultural Medicine in Lublin
摘要：The Dermacentor reticulatus tick is a main vector of Babesia canis in Europe. The risk of canine babesiosis is unpredictable,
due to significant differences in the prevalence of B. canis between ticks originating from closely situated regions. This
phenomenon may be explained by vertical transmission of the pathogen in a vector population. Thus, molecular techniques
were applied to investigate the occurrence of transovarial transmission in D. reticulatus ticks.
DNA of B. canis was detected in 20.7% (6/29) of engorged female ticks collected from dogs, in every pool of eggs laid by
positive females (100%, 6/6) and in larvae hatched from these eggs. In the pools of eggs collected from two positive females
(2/6; 33.3%), no larvae hatched and no embryos were observed inside the eggs.
Conclusions. Transovarial transmission of B. canis can be an important mechanism supporting maintenance of the pathogen
in the environment without the presence of a reservoir vertebrate host. However, the efficiency of transovarial transmission
in the maintenance of B. canis in natural conditions requires further field research.
