Prevalence of Cryptosporidium spp. in Yaks (Bos grunniens) in China: A Systematic Review and Meta-Analysis

Geng, Hong-Li; Ni, Hong-Bo; Li, Jing‐Hao; Jiang, Jing; Wang, Wei; Wei, Xinyu; Zhang, Yuan; Sun, Hui

doi:10.3389/fcimb.2021.770612

Cited by 5 publications

(2 citation statements)

References 52 publications

(72 reference statements)

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“…However, previous studies have indicated that the prevalence of Cryptosporidium spp. in younger cattle is higher than that in adult cattle(Geng et al 2021;Li et al 2020). As the host of Cryptosporidium spp., cattle are usually primarily infected by C. bovis, C. parvum, C. andersoni and C. ryanae(Gong et al 2017).…”

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confidence: 92%

First report of the prevalence and molecular identification of Cryptosporidium spp. in mithun (Bos frontalis) in Yunnan Province, southwestern China

Zhuang

Yue

Chen

et al. 2022

Preprint

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Mithun (Bos frontalis) is a rare bovine species that is distributed in Yunnan Province, southwestern China. However, the prevalence of that species in mithun is still poorly understood. The prevalence and species of Cryptosporidium spp. in the fecal matters in mithun were examined at 5 locations in Yunnan province, southwestern China. On the basis of the analysis of the 18S rRNA gene by nested PCR (nPCR), followed by DNA sequencing, 39 (6.24%) of 625 fecal specimens collected from 5 locations were positive for Cryptosporidium spp. In different locations, the Cryptosporidium spp. has prevalence rates ranging from 1.27–10.04%, with statistical differences between the five locations (P < 0.05). In four seasons, the Cryptosporidium spp. has prevalence rates ranging from 0 to 15.60%, with obvious differences between the four seasons (P < 0.001). Four Cryptosporidium species were found, known as Cryptosporidium struthionis (n = 18), Cryptosporidium andersoni (n = 10), Cryptosporidium ryanae (n = 1), and Cryptosporidium sp. (n = 10). Until now this is the only report to examine the prevalence and molecular identification of Cryptosporidium spp. in mithun in Yunnan province, southwestern China, which affects public health safety and should be prevented by appropriate measures.

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confidence: 92%

First report of the prevalence and molecular identification of Cryptosporidium spp. in mithun (Bos frontalis) in Yunnan Province, southwestern China

Zhuang

Yue

Chen

et al. 2022

Preprint

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“…In addition to genetics, age, herd and farm environment, feeding practices, poor management and other complications, the most important factor is infection (5,6). Many countries, including China, have experienced calf diarrhea outbreaks of differing degrees caused by pathogens, such as Cryptosporidium, BRV, BCoV, E. coli K99 and other pathogens (7)(8)(9)(10). According to the annual report of Japan in 2017, the economic losses caused by BRV in the previous years were estimated to be about 1 billion yen (11).…”

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confidence: 99%

Detection of the dominant pathogens in diarrheal calves of Ningxia, China in 2021–2022

et al. 2023

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IntroductionCalf diarrhea is a complex disease that has long been an unsolved problem in the cattle industry. Ningxia is at the forefront of China in the scale of cattle breeding, and calf diarrhea gravely restricts the development of Ningxia's cattle industry.MethodsFrom July 2021 to May 2022, we collected diarrhea stool samples from calves aged 1–103 days from 23 farms in five cities in Ningxia, and performed PCR using specific primers for 15 major reported pathogens of calf diarrhea, including bacteria, viruses, and parasites. The effect of different seasons on the occurrence of diarrhea in calves was explored, the respective epidemic pathogens in different seasons were screened, and more detailed epidemiological investigations were carried out in Yinchuan and Wuzhong. In addition, we analyzed the relationship between different ages, river distributions and pathogen prevalence.ResultsEventually, 10 pathogens were detected, of which 9 pathogens were pathogenic and 1 pathogen was non-pathogenic. The pathogens with the highest detection rate were Cryptosporidium (50.46%), Bovine rotavirus (BRV) (23.18%), Escherichia coli (E. coli) K99 (20.00%), and Bovine coronavirus (BCoV) (11.82%). The remaining pathogens such as Coccidia (6.90%), Bovine Astrovirus (BoAstV) (5.46%), Bovine Torovirus (BToV) (4.09%), and Bovine Kobuvirus (BKoV) (3.18%) primarily existed in the form of mixed infection.DiscussionThe analysis showed that different cities in Ningxia have different pathogens responsible for diarrhea, with Cryptosporidium and BRV being the most important pathogens responsible for diarrhea in calves in all cities. Control measures against those pathogens should be enforced to effectively prevent diarrhea in calves in China.

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Effects of Cryptosporidium parvum infection on intestinal fungal microbiota in yaks (Bos grunniens)

Lu,

Zou,

Chen

et al. 2023

Microbial Pathogenesis

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Prevalence of Cryptosporidium spp. in Yaks (Bos grunniens) in China: A Systematic Review and Meta-Analysis

Cited by 5 publications

References 52 publications

First report of the prevalence and molecular identification of Cryptosporidium spp. in mithun (Bos frontalis) in Yunnan Province, southwestern China

First report of the prevalence and molecular identification of Cryptosporidium spp. in mithun (Bos frontalis) in Yunnan Province, southwestern China

Detection of the dominant pathogens in diarrheal calves of Ningxia, China in 2021–2022

Effects of Cryptosporidium parvum infection on intestinal fungal microbiota in yaks (Bos grunniens)

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