Cryptosporidium in chickens during 2000 to 2025: A systematic review and meta-analysis of prevalence, species/genotypes distribution and zoonotic significance.
Parasitol IntJun 16, 2026 (epub)
Jinfeng Zhao, Xiangqing Sui, Haili Du et al.
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In 30 seconds
This systematic review and meta-analysis evaluated the global prevalence of Cryptosporidium in chickens, analyzing 74 datasets from 21 countries. The overall prevalence was found to be 15.7% (3402/25,627; 95% CI 14.0-17.4%). The study highlights the zoonotic significance of various Cryptosporidium species, particularly C. meleagridis and C. parvum.
Key findings
- The global prevalence of Cryptosporidium in chickens was 15.7% (3402/25,627; 95% CI 14.0-17.4%).
- C. meleagridis was the dominant zoonotic species, followed by C. parvum.
- In Asia, C. baileyi was the most prevalent species, while C. meleagridis dominated in South America.
- The subgenotype family IIIb of C. meleagridis accounted for 45.6% (110/241) of the isolates.
Why it matters
Understanding the prevalence and distribution of Cryptosporidium in chickens is crucial for public health, as it poses a zoonotic risk through contaminated water and direct contact. This knowledge can inform prevention and control strategies.