Do Trung Dung

Le Thi Huyen Trang

Pham Thi Ngoc

Sinh Dang Xuan

Unger, Fred

Vu Thi Nga

Objectives: 
The study aim was to identify seroprevalence of trichinellosis and associated factors of both 
indigenous pigs and humans in Northern communities in Vietnam. 
Materials and methods: 
A cross-sectional study was conducted in 2021 in ten communes in Bac Yen district (Son La 
province) and Bat Xat district (Lao Cai provinces). A total of 1,000 serum samples (500 indigenous 
pigs and 500 community participants) was collected and tested using a commercial ELISA test kit 
(Priocheck, ThermoFisher). Structure questionnaires were also used to interview selected pig 
owners and sampled community members regarding pig raising practice, eating behavior and 
disease knowledge and prevention. 
Results: 
The result shows that seroprevalence of trichinellosis in indigenous pigs and humans were 9.0% 
(45/500, 95%CI: 6.7-11.9) and 13.4% (67/500, 95%CI: 10.6-16.8), respectively. Trichinella 
seroprevalence in human was significantly higher in Son La (16.7%) compared to in Lao Cai (8.5%), 
but not for seroprevalence in pigs. Factors associated with trichinellosis seroprevalence in human 
were raising pigs’ activities (p=0.029, Fisher test) and eating raw vegetable behavior (p=0.007, Chi square test). While factors associated with trichinellosis seroprevalence in pigs were farmer’s 
knowledge about trichinellosis (p=0.033, Chi-squared test). 
Conclusion: 
Seroprevalence in both pigs and humans in northern Vietnam were relatively high, especially in the 
endemic province, which suggested the possibility of Trichinella spp. circulation in the community 
and indigenous pigs. Animal and public health awareness for the northern communities and pig 
farmers, i.e., using One health approach, are necessary to improve prevention and control this 
disease

Sinh Dang-Xuan

Nga Vu-Thi

Dung Do-Trung

Trang Le-Thi-Huyen

Ngoc Pham-Thi

CGSpace

Seroprevalence and associated factors of trichinellosis in indigenous pigs and rural communities in Northern VietnamSinh Dang-Xuan1, Nga Vu-Thi2, Dung Do-Trung3, Trang Le-Thi-Huyen1, Ngoc Pham-Thi2, Fred Unger11International Livestock Research Institute, Hanoi, Vietnam; 2National Institute of Veterinary Research, Hanoi, Vietnam; 3National Institute of Malaria, Parasitology, and Entomology, Hanoi, VietnamParasitic pig-borne diseases (PPBD) such as cysticercosis andtrichinellosis continues a to be public health burden to LMIC. Bothare neglected diseases and expected to circulate to an unknownextend among minority communities and mountainous areas in SEAincluding Vietnam. Current information on trichinellosis PPBD isscarce. A better understanding of the current situation fortrichinellosis is important to assist risk communication andmanagement to further reduce the zoonotic burden of this diseasesfor the community.A cross-sectional study was conducted in 2021 in Vietnam in ten communes in Bac Yen district (Son La province) and Bat Xat district (Lao Cai provinces1. INTRODUCTION2. METHODOLOGY500 indigenous pigs' serumStudy sites3. RESULTSFig 3. Seroprevalence of trichinellosis in indigenous pigs and rural communities in 10 communes in studied provinces4. CONCLUSIONSThe result shows that seroprevalence of trichinellosis in indigenous pigs andhumans were 9.0% (45/500, 95% CI: 6.7-11.9) and 13.4% (67/500, 95%CI:10.6-16.8), respectively. Trichinella seroprevalence in human was significantlyhigher in Son La (16.7%) compared to in Lao Cai (8.5%), but not forseroprevalence in pigs.Seroprevalence in both pigs and humans in northern Vietnam wererelatively high, especially in the endemic province, which suggested thepossibility of Trichinella spp. circulation in the community andindigenous pigs. Animal and public health awareness for the northerncommunities and pig farmers, i.e., using One health approach, arenecessary to improve prevention and control this disease.Fig 2. Seroprevalence of trichinellosis in indigenous pigs and rural communities in two provinces (%)Contact: Sinh Dang-Xuan (S.Dang@cgiar.org); Fred Unger (F.unger@cgiar.org)Fig 1. Map of study sites in Vietnam and two selected provinces (Son La and Lao Cai (A), two selected districts in Son La and Lao Cai provinces (B and C), and five selected communes in those two districts (D and E).500 community participantsELISA test kit (Priocheck, ThermoFisher) for serology testStructure questionnaires were also used to interview selected pig owners and sampled community members regarding pig raising practice, eating behavior and disease knowledge and prevention. Factors associated with trichinellosis seroprevalence in human wereraising pigs’ activities (p=0.029, Fisher test) and eating raw vegetablebehavior (p=0.007, Chi-square test). While factors associated withtrichinellosis seroprevalence in pigs were farmer’s knowledge abouttrichinellosis (p=0.033, Chi-squared test)This publication is copyrighted by the International Livestock Research Institute (ILRI). It is licensed for use under the CreativeCommons Attribution 4.0 International License. August 2022

Seroprevalence and associated factors of trichinellosis in indigenous pigs and rural communities in Northern Vietnam

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Seroprevalence and associated factors of trichinellosis in indigenous pigs and rural communities in Northern Vietnam  

Seroprevalence and associated factors of trichinellosis in indigenous pigs and rural communities in Northern Vietnam

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