Survey of Trichinella infection from domestic pigs in the historical endemic areas of Henan province, central China
- 193 Downloads
The aim of this work was to investigate the current situation of Trichinella infection from domestic pigs in the historical endemic areas of Henan province, central China. A total of 823 diaphragm samples from the indoor-raised pigs were collected in five cities of Henan during 2014–2015 and examined by artificial digestion method. The overall prevalence of Trichinella infection in pigs was 0.61 % (5/823). Trichinella larvae were detected in 0.91 % (5/550) of pigs from Nanyang city of Henan. The larval burden in infected animals was 0.03 larvae per gram (lpg) of muscles with a range from 0.02 to 0.05 lpg. The larvae were identified as Trichinella spiralis by multiple PCR. Our study confirms the existence of swine trichinellosis in Henan, but the infection level was under the minimum level for defining infectious sources for humans. However, the prevalence of swine Trichinella infection in Henan need to be further evaluated with a large scale of pork samples for ensuring meat food safety.
KeywordsTrichinella spiralis Domestic pigs Artificial digestion Multiplex PCR China
This work was supported by the National Natural Science Foundation of China (No. 81572024) and the National Undergraduate Innovation Training Programs of China (No. 201610459075).
- Chang J, Zhao QF, Li Y, Li GL, Chen JS, Liu D (1991) The survey of human trichinellosis in Nanyang city of Henan Province. Chin J of Parasitol and Parasit Dis S1:142–143Google Scholar
- Cui J, Wang ZQ, Hu DS (2006b) The epidemiology of swine trichinellosis in China during 1999-2004. Helminthologia 43:21–26Google Scholar
- Gamble HR, Bessonov AS, Cuperlovic K, Gajadhar AA, van Knapen F, Noeckler K, Schenone H, Zhu X (2000) International Commission on Trichinellosis: recommendations on methods for the control of Trichinella in domestic and wild animals intended for human consumption. Vet Parasitol 93:393–408CrossRefPubMedGoogle Scholar
- Wang ZQ, Xu BL, Cui J, Zhang HW, Jiang P (2014) Trichinellosis. In: Ma YX, Shang LY, Xu BL (eds) Analysis and prevention of parasitic diseases in Henan Province (1949-2014). Henan people’s publishing house, Zhengzhou, pp 221–239Google Scholar