Toxoplasma gondii infection in domestic cats and northern fur seals of the Pribilof Islands, Alaska

IF 2.2 3区医学 Q3 ECOLOGY

International Journal for Parasitology-Parasites and Wildlife Pub Date : 2025-06-11 DOI:10.1016/j.ijppaw.2025.101096

Tania Dawant , Richard Gerhold , Danielle Scott , Chunlei Su , Lauren Divine , Mike Williams , Rolf Ream , Tom Gelatt , Colleen Duncan

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Abstract

Disseminated toxoplasmosis has been described in northern fur seals, however little is known about the significance and epidemiology of this pathogen in free ranging populations. We tested archived serum from a subset of domestic cats (Felis catus) and adult northern fur seals (Callorhinus ursinus; NFS) in the Pribilof Islands, Alaska, for T. gondii antibodies and feline fecal samples for T. gondii oocysts. Of the 37 cats, two (5.4 %) were seropositive and all (n = 36) fecal float samples were negative. Of the 225 NFS serum samples, 37 (16.4 %) were positive by modified agglutination tests. There was no statistically significant difference in the seroprevalence of NFS by year or region of animal capture. These findings suggest that T. gondii exposure in both cats and NFS is present but appears lower in this region compared to other studied areas.

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阿拉斯加普里比洛夫群岛家猫和北方海豹的刚地弓形虫感染

在北方海狗中已发现播散性弓形虫病，但对这种病原体在自由放养种群中的重要性和流行病学知之甚少。我们检测了一组家猫（Felis catus）和成年北方毛海豹(Callorhinus ursinus；在阿拉斯加Pribilof群岛检测弓形虫抗体，在猫粪便样本中检测弓形虫卵囊。在37只猫中，2只（5.4%）血清阳性，所有（n = 36）粪浮子样本均为阴性。在225份NFS血清样本中，37份（16.4%）经改良凝集试验呈阳性。在动物捕获的年份或地区中，NFS的血清患病率无统计学意义差异。这些发现表明，在猫和NFS中都存在弓形虫暴露，但与其他研究地区相比，该地区的弓形虫暴露率较低。

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来源期刊

International Journal for Parasitology-Parasites and Wildlife Medicine-Infectious Diseases

CiteScore

3.80

自引率

5.60%

发文量

113

审稿时长

45 days

期刊介绍： The International Journal for Parasitology: Parasites and Wildlife (IJP-PAW) publishes the results of original research on parasites of all wildlife, invertebrate and vertebrate. This includes free-ranging, wild populations, as well as captive wildlife, semi-domesticated species (e.g. reindeer) and farmed populations of recently domesticated or wild-captured species (e.g. cultured fishes). Articles on all aspects of wildlife parasitology are welcomed including taxonomy, biodiversity and distribution, ecology and epidemiology, population biology and host-parasite relationships. The impact of parasites on the health and conservation of wildlife is seen as an important area covered by the journal especially the potential role of environmental factors, for example climate. Also important to the journal is ''one health'' and the nature of interactions between wildlife, people and domestic animals, including disease emergence and zoonoses.