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Toxoplasma gondii infection in farmed wild boars (Sus scrofa) in three cities of northeast China

Bai, Meng-Jie; Zou, Yang; Elsheikha, Hany M.; Ma, Jian-Gang; Zheng, Wen-Bin; Zhao, Quan; Zhang, Xiao-Xuan; Zhu, Xing-Quan

Toxoplasma gondii infection in farmed wild boars (Sus scrofa) in three cities of northeast China Thumbnail


Meng-Jie Bai

Yang Zou

Jian-Gang Ma

Wen-Bin Zheng

Quan Zhao

Xiao-Xuan Zhang

Xing-Quan Zhu


The apicomplexan protozoan parasite Toxoplasma gondii is a widely distributed etiological agent of foodborne illness. This parasite can cause production losses in livestock and serious disease in humans through consumption of contaminated meat. Pig meat is the most likely source of human infection, and wild boars may play a role in the transmission of T. gondii by serving as a reservoir host. This study aimed to investigate the seroprevalence of antibodies to T. gondii among farmed wild boars in China. In an 11-month survey, a total of 882 serum samples were obtained from farmed wild boars from three cities (Jilin City, Siping City, and Baishan City) in Jilin province, Northeast China and were tested for antibodies specific for T. gondii. Using modified agglutination test and a cutoff titer of 1:25, the prevalence of T. gondii infection in the examined samples was 10.0% (88 of 882). The highest seroprevalence was observed in animals from Jilin city (15.3%, 43/281) and followed by Siping (11.4%, 30/263) and Baishan (4.4%, 15/338). Logistic regression analysis revealed a significant correlation between the investigated geographic region and T. gondii infection. In addition, prevalence was higher in females compared to males, and the highest prevalence was detected in piglets. These findings indicate that farmed wild boars may become a source of foodborne toxoplasmosis, posing a food safety threat to the public health in the investigated areas. Implementation of effective measures to control T. gondii infection in farmed wild boars in China may be warranted.


Bai, M., Zou, Y., Elsheikha, H. M., Ma, J., Zheng, W., Zhao, Q., …Zhu, X. (2017). Toxoplasma gondii infection in farmed wild boars (Sus scrofa) in three cities of northeast China. Foodborne Pathogens and Disease, 14(7), 379-385.

Journal Article Type Article
Acceptance Date Apr 7, 2017
Online Publication Date Jul 7, 2017
Publication Date 2017-07
Deposit Date May 31, 2017
Publicly Available Date Jul 7, 2017
Journal Foodborne Pathogens and Disease
Print ISSN 1535-3141
Electronic ISSN 1556-7125
Publisher Mary Ann Liebert
Peer Reviewed Peer Reviewed
Volume 14
Issue 7
Pages 379-385
Keywords Toxoplasma gondii — Food safety — Seroprevalence — Risk factors — Wild boars — China
Public URL
Publisher URL
Additional Information Final publication is available from Mary Ann Liebert, Inc., publishers


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