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Cryptosporidium and cryptosporidiosis in wild birds: A One Health perspective

  • Genetics, Evolution, and Phylogeny - Review
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Abstract

Cryptosporidium is one of the most important parasitic protozoa that can be transmitted through food and water contamination. With the increasing report of Cryptosporidium infections in wild birds, especially in herbivorous waterfowl, concerns have been raised for oocyst contamination of water and food supplies, which in turn can cause human and domestic animal infections in areas neighboring wild birds’ habitats. This review discusses the epidemiology, species, and genotypes distribution of Cryptosporidium in wild birds around the world. The overall prevalence of Cryptosporidium in wild birds was calculated as 3.96% (1945/49129), with 6 Cryptosporidium species (C. andersoni, C. parvum, C. meleagridis, C. avium, C. baileyi, and C. galli) and 5 genotypes (Goose genotype I, Goose genotype II, Avian genotype I, Avian genotype III, and Avian genotype VI) reported. As wild birds mainly live in the wild, control method for the Cryptosporidium infection in wild birds is still lacking, which increases the probability of disease transmission from wild birds to humans. The main purpose of this review is to highlight the Cryptosporidium infection in wild birds and its transmission, associated risk factors, and their prevention, illustrating the necessity of multidisciplinary approaches toward screening and control of Cryptosporidium infections.

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Funding

This study was supported in part by the National Natural Science Foundation of China (U1904203), Higher Education Teaching Reform Research and Practice Project of Henan Province in 2019 (2019SJGLX006Y), National Key Research and Development Program of China (2017YFD0501305, 2019YFC1605700), and the Leading Talents of the Thousand Talents Program of Central China (19CZ0122). The sponsors played no role in the study design, in the collection, analysis, or interpretation of the data, in writing the report, or in the decision to submit the article for publication. We thank LetPub (www.letpub.com) for its linguistic assistance during the preparation of this manuscript.

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Contributions

LZ conceived and designed the review. YW developed the draft manuscript and analyzed the data. KZ and YC analyzed the data. XL revised the draft manuscript.

Corresponding author

Correspondence to Longxian Zhang.

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The authors declare no competing interests.

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Section Editor: Lihua Xiao

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Wang, Y., Zhang, K., Chen, Y. et al. Cryptosporidium and cryptosporidiosis in wild birds: A One Health perspective. Parasitol Res 120, 3035–3044 (2021). https://doi.org/10.1007/s00436-021-07289-3

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  • DOI: https://doi.org/10.1007/s00436-021-07289-3

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