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日本冲绳地区自由放养猫中弓形虫抗体的流行率和分离情况。

Toxoplasma gondii antibody prevalence and isolation in free-ranging cats in Okinawa, Japan.

机构信息

Okinawa Prefectural Institute of Health and Environment, Okinawa 904-2241, Japan.

Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima 890-0065 Japan.

出版信息

J Vet Med Sci. 2021 Aug 26;83(8):1303-1305. doi: 10.1292/jvms.21-0038. Epub 2021 Jul 2.

DOI:10.1292/jvms.21-0038
PMID:34219071
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8437723/
Abstract

Cats are an important host of Toxoplasma gondii from an epidemiological perspective because they are the only definitive hosts that excrete oocysts in their feces. In this study, 201 free-ranging cats in Okinawa were examined for T. gondii infection. Using the latex agglutination test, we detected antibodies against T. gondii in 26.9% (54/201) of the cats. Oocysts of T. gondii were not detected upon microscopic examination of the feces of 128 cats. T. gondii was isolated from the tissues of 9 out of 24 seropositive or pseudo-seropositive cats with a bioassay using laboratory mice. Genotyping for the GRA6 gene revealed that five and four of the isolates were type I and II, respectively.

摘要

从流行病学的角度来看，猫是刚地弓形虫的重要宿主，因为它们是唯一在粪便中排出卵囊的终末宿主。在这项研究中，对冲绳的 201 只自由放养的猫进行了刚地弓形虫感染检查。使用乳胶凝集试验，我们在 26.9%（54/201）的猫中检测到了针对刚地弓形虫的抗体。在对 128 只猫的粪便进行显微镜检查时，未发现刚地弓形虫卵囊。通过使用实验室小鼠的生物测定法，从 24 只血清阳性或疑似血清阳性的猫的组织中分离出了 9 株刚地弓形虫。对 GRA6 基因的基因分型显示，其中 5 株和 4 株分别为 I 型和 II 型。

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