Canine babesiosis is a serious disease among tick-borne haemoprotozoan diseases that threaten dog health. To find out the prevalence of canine babesiosis and its main pathogenic species in Shaanxi Province, the study was centered on the infection of babesiosis in dogs in different regions of the Province. First, a total of 367 blood samples were collected in Shaanxi Province, and 53 Babesia nucleic-acid-positive samples were found by polymerase chain reaction (PCR) identification, with a positive rate of 14.44%, and Babesia gibsoni was found by sequencing analysis. Further analysis showed that the prevalence of canine babesiosis was significantly different in 5 regions. There was no significant difference in infection rates between age groups, with the lowest prevalence in young dogs (10.81%) and the highest in adult dogs (17.29%). The infection rate in male dogs was higher than in female dogs. The morbidity of canine Babesia spp. was significantly different between different seasons, with the highest infection rate in autumn (27.78%) and the lowest in winter (6.10%). In conclusion, the epidemicity of canine Babesia spp. in dogs was mainly affected by region and season, and B. gibsoni was the most common canine Babesia spp. within Shaanxi Province in our study. These results provide basic data for the prevention and control of canine babesiosis in this region.

犬巴贝斯虫病是一种严重的由蜱传播的血原虫疾病，威胁狗的健康。为了解陕西省犬类巴贝虫病流行情况及其主要病原菌种，本研究以全省不同地区犬类巴贝虫病感染情况为研究对象。一、陕西省共采集血样367份，经聚合酶链反应（PCR）鉴定发现巴贝虫核酸阳性样本53份，阳性率为14.44%，吉布氏巴贝虫通过测序分析发现。进一步分析表明，5个地区的犬巴贝斯虫病患病率存在​​显着差异。各年龄组感染率无显着差异，幼犬感染率最低（10.81%），成年犬感染率最高（17.29%）。公犬的感染率高于母犬。犬巴贝虫属的发病率。不同季节感染率差异显着，秋季感染率最高（27.78%），冬季最低（6.10%）。总之，犬巴贝虫属的流行性。在犬类中主要受地区和季节影响，B. gibsoni是最常见的犬类巴贝虫spp. 在我们研究的陕西省内。这些结果为该地区犬巴贝斯虫病的防控提供了基础数据。