Evaluating the Risk Factors for Porcine Epidemic Diarrhea Virus Infection in an Endemic Area of Vietnam.

Autor:	Mai TN; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan.; Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam., Bui TP; Branch of Cargill Vietnam Co., Ltd, Dong Van II Industrial Zone, Ha Nam, Vietnam., Huynh TML; Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi, Vietnam., Sasaki Y; Department of Animal and Grassland Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.; Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan., Mitoma S; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan., Daous HE; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki, Japan.; Faculty of Veterinary Medicine, Benha University, Toukh, Egypt., Fahkrajang W; Department of Livestock Development, Ministry of Agriculture and Cooperatives, Bangkok, Thailand., Norimine J; Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan.; Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan., Sekiguchi S; Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan.; Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.
Jazyk:	angličtina
Zdroj:	Frontiers in veterinary science [Front Vet Sci] 2020 Jul 29; Vol. 7, pp. 433. Date of Electronic Publication: 2020 Jul 29 (Print Publication: 2020).
DOI:	10.3389/fvets.2020.00433
Abstrakt:	Porcine epidemic diarrhea virus (PEDV) causes enteritis, vomiting, watery diarrhea, and high mortality in suckling pigs, threatening the swine industry. Porcine epidemic diarrhea (PED) re-emerged globally in 2013 in many important swine-producing countries in Asia and the Americas. Several studies have identified the risk factors for the spread of PEDV in acute outbreaks. However, limited information is available on the risk factors for the transmission of PEDV in endemic regions. We hypothesized that poor biosecurity, location, and some social or cultural practices are the main risk factors for PEDV transmission in the Vietnamese pig population. The aim of this study was to evaluate the potential risk factors for the transmission of PEDV in an endemic area in Vietnam. In this case-control study, questionnaires containing 51 questions were completed for 92 PEDV-positive and 95 PEDV-negative farms. A logistic regression analysis was performed to assess the risk factors associated with PEDV infection. Province and the total number of pigs were included as random effects to determine their influence on the risk of PEDV infection. Twenty-nine variables of interest that have been associated with PEDV status were analyzed in a univariate analysis ( P <0.20), with backward stepwise selection. Only three of these 29 variables in four models remained significant PEDV risk factors in the final model: farrow-to-wean production type, distance from the farm to the slaughterhouse (<1,000 m), and the presence of chickens on site ( P <0.05). This is the first study to identify the main risk factors for PEDV infection in an endemic area. Our findings suggest that hygiene measures should be strictly implemented on farms for the effective control and prevention of PEDV infection. (Copyright © 2020 Mai, Bui, Huynh, Sasaki, Mitoma, Daous, Fahkrajang, Norimine and Sekiguchi.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu