Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis

Cryptosporidium spp. are significant opportunistic pathogens causing diarrhoea in humans and animals. Pigs are one of the most important potential hosts for Cryptosporidium. We evaluated the prevalence of Cryptosporidium in pigs globally using published information and a random-effects model. In tot...

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Main Authors: Yuancai Chen, Huikai Qin, Yayun Wu, Huiyan Xu, Jianying Huang, Junqiang Li, Longxian Zhang
Format: Article
Language:English
Published: Cambridge University Press 2023-05-01
Series:Parasitology
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S0031182023000276/type/journal_article
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author Yuancai Chen
Huikai Qin
Yayun Wu
Huiyan Xu
Jianying Huang
Junqiang Li
Longxian Zhang
author_facet Yuancai Chen
Huikai Qin
Yayun Wu
Huiyan Xu
Jianying Huang
Junqiang Li
Longxian Zhang
author_sort Yuancai Chen
collection DOAJ
description Cryptosporidium spp. are significant opportunistic pathogens causing diarrhoea in humans and animals. Pigs are one of the most important potential hosts for Cryptosporidium. We evaluated the prevalence of Cryptosporidium in pigs globally using published information and a random-effects model. In total, 131 datasets from 36 countries were included in the final quantitative analysis. The global prevalence of Cryptosporidium in pigs was 16.3% (8560/64 809; 95% confidence interval [CI] 15.0–17.6%). The highest prevalence of Cryptosporidium in pigs was 40.8% (478/1271) in Africa. Post-weaned pigs had a significantly higher prevalence (25.8%; 2739/11 824) than pre-weaned, fattening and adult pigs. The prevalence of Cryptosporidium was higher in pigs with no diarrhoea (12.2%; 371/3501) than in pigs that had diarrhoea (8.0%; 348/4874). Seven Cryptosporidium species (Cryptosporidium scrofarum, Cryptosporidium suis, Cryptosporidium parvum, Cryptosporidium muris, Cryptosporidium tyzzeri, Cryptosporidium andersoni and Cryptosporidium struthioni) were detected in pigs globally. The proportion of C. scrofarum was 34.3% (1491/4351); the proportion of C. suis was 31.8% (1385/4351) and the proportion of C. parvum was 2.3% (98/4351). The influence of different geographic factors (latitude, longitude, mean yearly temperature, mean yearly relative humidity and mean yearly precipitation) on the infection rate of Cryptosporidium in pigs was also analysed. The results indicate that C. suis is the dominant species in pre-weaned pigs, while C. scrofarum is the dominant species in fattening and adult pigs. The findings highlight the role of pigs as possible potential hosts of zoonotic cryptosporidiosis and the need for additional studies on the prevalence, transmission and control of Cryptosporidium in pigs.
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spelling doaj.art-06927004afee49d98f63f97f5b5e980a2023-07-21T09:25:20ZengCambridge University PressParasitology0031-18201469-81612023-05-0115053154410.1017/S0031182023000276Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysisYuancai Chen0Huikai Qin1Yayun Wu2Huiyan Xu3Jianying Huang4Junqiang Li5Longxian Zhang6https://orcid.org/0000-0001-9310-1975College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCollege of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P. R. ChinaCryptosporidium spp. are significant opportunistic pathogens causing diarrhoea in humans and animals. Pigs are one of the most important potential hosts for Cryptosporidium. We evaluated the prevalence of Cryptosporidium in pigs globally using published information and a random-effects model. In total, 131 datasets from 36 countries were included in the final quantitative analysis. The global prevalence of Cryptosporidium in pigs was 16.3% (8560/64 809; 95% confidence interval [CI] 15.0–17.6%). The highest prevalence of Cryptosporidium in pigs was 40.8% (478/1271) in Africa. Post-weaned pigs had a significantly higher prevalence (25.8%; 2739/11 824) than pre-weaned, fattening and adult pigs. The prevalence of Cryptosporidium was higher in pigs with no diarrhoea (12.2%; 371/3501) than in pigs that had diarrhoea (8.0%; 348/4874). Seven Cryptosporidium species (Cryptosporidium scrofarum, Cryptosporidium suis, Cryptosporidium parvum, Cryptosporidium muris, Cryptosporidium tyzzeri, Cryptosporidium andersoni and Cryptosporidium struthioni) were detected in pigs globally. The proportion of C. scrofarum was 34.3% (1491/4351); the proportion of C. suis was 31.8% (1385/4351) and the proportion of C. parvum was 2.3% (98/4351). The influence of different geographic factors (latitude, longitude, mean yearly temperature, mean yearly relative humidity and mean yearly precipitation) on the infection rate of Cryptosporidium in pigs was also analysed. The results indicate that C. suis is the dominant species in pre-weaned pigs, while C. scrofarum is the dominant species in fattening and adult pigs. The findings highlight the role of pigs as possible potential hosts of zoonotic cryptosporidiosis and the need for additional studies on the prevalence, transmission and control of Cryptosporidium in pigs.https://www.cambridge.org/core/product/identifier/S0031182023000276/type/journal_articleCryptosporidiummeta-analysispigprevalence
spellingShingle Yuancai Chen
Huikai Qin
Yayun Wu
Huiyan Xu
Jianying Huang
Junqiang Li
Longxian Zhang
Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
Parasitology
Cryptosporidium
meta-analysis
pig
prevalence
title Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
title_full Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
title_fullStr Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
title_full_unstemmed Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
title_short Global prevalence of Cryptosporidium spp. in pigs: a systematic review and meta-analysis
title_sort global prevalence of cryptosporidium spp in pigs a systematic review and meta analysis
topic Cryptosporidium
meta-analysis
pig
prevalence
url https://www.cambridge.org/core/product/identifier/S0031182023000276/type/journal_article
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