China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (5): 2058-2070.doi: 10.16431/j.cnki.1671-7236.2024.05.027

• Preventive Veterinary Medicine • Previous Articles     Next Articles

Epidemic Report of Classical Swine Fever Virus in Pigs from 2005 to 2023 of China:Meta-Analysis and Systematic Review

HUANG Shilei1, LUO Gan3, CHENG Peng3, NIU Zheng4, GUO Jianhua2, ZOU Hong1,2   

  1. 1. College of Animal Science & Technology, Chongqing Three Gouges Vocational College, Chongqing 404100, China;
    2. College of Veterinary Medicine, Southwest University, Chongqing 402460, China;
    3. Wanzhou Center for Animal Husbandry Industry Development of Chongqing, Chongqing 404100, China;
    4. College of Veterinary Medicine, Northwest A & F University, Yangling 712100, China
  • Received:2023-11-08 Online:2024-05-05 Published:2024-04-28

Abstract: 【Objective】 The aim of this study was to provide more advanced evidence for a comprehensive understanding of the epidemic infection of Classical swine fever virus (CSFV) in Chinese pig herds and for the later epidemiological investigation of CSFV.【Method】 In this study,the relevant literature on the prevalence of CSFV in Chinese pig herds was searched in six major databases at home and abroad,such as CNKI,Wanfang,VIP,PubMed,Web of Science and Science Direct.The search time range was from January 1,2005 to January 1,2023.Through literature screening,literature quality score and data extraction of CSFV prevalence,Meta-analysis and systematic review of the overall prevalence of CSFV were performed using StataMP17 software.Meta-regression analysis and subgroup analysis were used to analyze the heterogeneity sources and influencing factors of the overall prevalence of CSFV.【Result】 A total of 55 literatures related to the prevalence of CSFV were screened from 6 major databases and included in the Meta-analysis and systematic review.Among them,18 literatures were included in the high-quality literature,and 37 literatures were included in the medium-quality literature.The results of Meta-analysis showed that the overall prevalence of CSFV in Chinese pig herds from 2005 to 2023 was 12% (95% CI:0.09-0.15).The results of Meta-regression analysis and subgroup analysis showed that the sources of heterogeneity of the literature did not include sampling time and pig species (P>0.05),while the factors affecting the prevalence of CSFV included diagnostic methods,seasonal changes,climatic factors,altitude,latitude,longitude and regional distribution (P<0.05).【Conclusion】 This study determined the overall prevalence of CSFV in pigs in China from the data.The overall prevalence rate was not high,and the epidemic trend was still scattered in the region,mainly chronic and atypical strains.The results had certain reference significance for grasping the global situation of CSFV epidemic in pig herds,effective prevention and control,and purification of classical swine fever (CSF).

Key words: Classical swine fever virus (CSFV); Meta-analysis; systematic review; epidemiology

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