Shuralev Eduard A, Shamaev Nikolai D, Mukminov Malik N, Nagamune Kisaburo, Taniguchi Yuji, Saito Taizo, Kitoh Katsuya, Arleevskaya Marina I, Fedotova Anastasiya Yu, Abdulmanova Diana R, Aleksandrova Natalya M, Efimova Marina A, Yarullin Aynur I, Valeeva Anna R, Khaertynov Kamil S, Takashima Yasuhiro
Department of Applied Ecology, Institute of Environmental Sciences, Kazan Federal University, 18 Kremlyovskaya St., Kazan, Tatarstan 420008, Russian Federation; Central Research Laboratory, Kazan State Medical Academy - Branch Campus of the Federal State Budgetary Educational Institution of Further Professional Education «Russian Medical Academy of Continuous Professional Education», Ministry of Healthcare of the Russian Federation, 36 Butlerova St., Kazan, Tatarstan 420012, Russian Federation; Federal Center for Toxicological, Radiation and Biological Safety, Nauchniy Gorodok-2, Kazan, Tatarstan 420075, Russian Federation.
Department of Applied Ecology, Institute of Environmental Sciences, Kazan Federal University, 18 Kremlyovskaya St., Kazan, Tatarstan 420008, Russian Federation.
Parasitol Int. 2018 Apr;67(2):112-114. doi: 10.1016/j.parint.2017.10.014. Epub 2017 Nov 8.
Toxoplasmosis, a most common zoonosis, is caused by the protozoan parasite Toxoplasma gondii. However, there is little epidemiological information on T. gondii infections in humans and livestock animals in Russia. Therefore, in this study, the seroprevalence of T. gondii in goats in Russia was investigated. A total of 216 goats from 32 farms were investigated and 95 of them were seropositive for T. gondii. The difference in seroprevalence between the examined regions was not statistically significant. We next collected serum samples from 99 cats and 181 humans in Kazan city, the state capital of the Republic of Tatarstan, Russia, and examined their T. gondii seroprevalences. Thirty-nine of the 99 cat samples and 56 of the 181 human samples showed seropositivity. Logistical regression analysis revealed that the cat breeding history of the human subjects, but not their sex or age is a significant risk factor for T. gondii seropositivity. These findings suggest that the natural environment in Russia may be widely polluted with T. gondii oocysts shed by cats, and ingestion of these oocysts provides a major route for human infection with this parasite.
弓形虫病是一种极为常见的人畜共患病，由原生动物寄生虫刚地弓形虫引起。然而，俄罗斯关于人类和家畜感染刚地弓形虫的流行病学信息很少。因此，在本研究中，对俄罗斯山羊的弓形虫血清阳性率进行了调查。共调查了来自32个农场的216只山羊，其中95只弓形虫血清呈阳性。各检测地区之间的血清阳性率差异无统计学意义。接下来，我们从俄罗斯鞑靼斯坦共和国首府喀山市的99只猫和181个人类身上采集了血清样本，并检测了他们的弓形虫血清阳性率。99份猫样本中有39份、181份人类样本中有56份呈血清阳性。逻辑回归分析显示，人类受试者的养猫史是弓形虫血清阳性的一个重要危险因素，而不是他们的性别或年龄。这些发现表明，俄罗斯的自然环境可能被猫排出的弓形虫卵囊广泛污染，摄入这些卵囊是人类感染这种寄生虫的主要途径。
