Zhao Qianming, Pei Zhiyang, He Yongqiang, Jia Ting, Zhang Yanzhen, Zheng Mengjun, Zhang Zhenjie, Qi Meng
College of Animal Science and Technology, Tarim University, Alaer, Xinjiang 843300, China.
Beijing Zoo, Beijing Key Laboratory of Captive Wildlife Technologies, Beijing 100044, China.
Parasite. 2025;32:4. doi: 10.1051/parasite/2024079. Epub 2025 Jan 23.
Giardia duodenalis and Cryptosporidium spp. are significant zoonotic parasites that cause diarrhea and affect a diverse range of hosts. This study aimed to investigate the infection rates of these parasites in captive wildlife at Beijing Zoo. A total of 445 fecal samples were collected and analyzed using PCR. The infection rate of G. duodenalis was 3.82% (17/445), with assemblage A (n = 1), assemblage B (n = 13), and assemblage E (n = 3) identified. The infection rate of Cryptosporidium spp. was 0.22% (1/445), with only one instance of C. ryanae identified from cattle (Bos taurus). To the best of our knowledge, this study enhances the understanding of the host range of G. duodenalis in captive wildlife within China, highlighting infections in Corsac Fox (Vulpes corsac), Indian Rhinoceros (Rhinoceros unicornis), and Giraffe (Giraffa camelopardalis). These findings indicate that the infection rates of G. duodenalis and Cryptosporidium spp. in captive wildlife at Beijing Zoo are low, while showing that the known host range of G. duodenalis is expanding.
十二指肠贾第虫和隐孢子虫属是重要的人畜共患寄生虫，可引起腹泻并感染多种宿主。本研究旨在调查北京动物园圈养野生动物中这些寄生虫的感染率。共收集了445份粪便样本，并采用聚合酶链反应（PCR）进行分析。十二指肠贾第虫的感染率为3.82%（17/445），鉴定出A群（n = 1）、B群（n = 13）和E群（n = 3）。隐孢子虫属的感染率为0.22%（1/445），仅从牛（Bos taurus）中鉴定出1例雷氏隐孢子虫。据我们所知，本研究增进了对中国圈养野生动物中十二指肠贾第虫宿主范围的了解，突出了沙狐（Vulpes corsac）、印度犀（Rhinoceros unicornis）和长颈鹿（Giraffa camelopardalis）的感染情况。这些发现表明，北京动物园圈养野生动物中十二指肠贾第虫和隐孢子虫属的感染率较低，同时表明十二指肠贾第虫已知的宿主范围正在扩大。
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