Duck Tembusu virus (DTMUV) has been reported in ducks raised in farming system since its emergence in 2010. No information is available on DTMUV infection in free-grazing ducks, which are commonly raised and widespread in several Asian countries. To determine the presence of DTMUV infection in free-grazing ducks in Thailand, retrospective serum samples collected from 1,000 free-grazing ducks during 2008-2015 were tested for DTMUV infection. Our result showed that 91 (9.10%) were positive for DTMUV neutralizing antibodies and DTMUV seropositive ducks have been detected in Thailand since 2008. To further investigate the seroprevalence and geographic distribution of DTMUV infection in free-grazing ducks in Thailand, a cross-sectional serological survey of DTMUV was conducted in 2016. Of 1,200 free-grazing ducks in the 60 flocks from 20 provinces located in the major free-grazing duck raising areas of Thailand, 365 (30.42%) were positive for DTMUV neutralizing antibodies and 56 flocks (93.33%) had at least one DTMUV seropositive duck. Additionally, DTMUV seropositive ducks were observed in all provinces tested. In conclusion, our data demonstrated the presence of DTMUV infection in free-grazing ducks since 2008 and widespread DTMUV infection in free-grazing ducks in Thailand with a relatively high seroprevalence. These findings suggest the potential role of free-grazing ducks in the dissemination of DTMUV and highlight the necessity of systemic DTMUV surveillance in free-grazing ducks in addition to farm ducks for early detection, prevention, and control of this emerging disease.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/tbed.12975 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Genetic characterization of low-pathogenic avian influenza subtypes H10N6 and H10N7 from free-grazing ducks in Thailand.
Vet World
September 2024
Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, 10330, Thailand.
Article Synopsis
- Free-grazing ducks (FGDs) in Thailand are known to harbor various influenza A viruses (IAVs), making them important for surveillance and research on avian influenza.
- The study involved collecting 640 swab samples from 29 FGD flocks across six provinces, successfully isolating two subtypes of IAV, H10N6 and H10N7, for genetic analysis.
- The findings indicate that these viruses belong to the Eurasian lineage, exhibit low-pathogenic traits, and show minimal potential for zoonotic transmission, though ongoing monitoring is necessary for any novel variants.
Heavy metal contamination in eggs on poultry farms and ecological risk assessment around a gold mine area in northern Thailand.
Environ Geochem Health
September 2024
Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand.
The aim of this study was to analyze and compare the Hg, Pb, Cd, and Mn levels in egg feed, soil, and water among laying hens, laying ducks, and free-grazing duck farms in contaminated and uncontaminated areas. This study revealed that the Hg concentration in the eggs of free-grazing ducks was significantly greater than that in the eggs of laying hens and ducks in both contaminated and uncontaminated areas. However, the Pb and Mn levels in the eggs of laying ducks and free-grazing ducks were significantly greater than those in the eggs of laying hens in the contaminated area.
View Article and Find Full Text PDFSerological Detection of among Free-Grazing Ducks from Central and Western Thailand-A One Health Perspective on Integrated Farming.
Trop Med Infect Dis
February 2023
Department of Parasitology, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand.
Toxoplasmosis is one of the most common zoonotic parasitic diseases infecting nearly all warm-blooded animals, including poultry (geese, turkeys, chickens, and ducks). It is caused by (), which is an obligate intracellular protozoan belonging to the Apicomplexa group. In Thailand, duck meat production for domestic consumption and international trade is mainly bred and produced in the central and western parts of the country.
View Article and Find Full Text PDFPotential Health Effects of Heavy Metals and Carcinogenic Health Risk Estimation of Pb and Cd Contaminated Eggs from a Closed Gold Mine Area in Northern Thailand.
Foods
September 2022
Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand.
Article Synopsis
- Gold-mining activities are causing heavy metal pollution (Hg, Pb, Mn) that threatens public health in nearby areas, prompting a study in northern Thailand focused on chicken and duck farms.
- The study revealed that concentrations of these heavy metals were significantly higher in free-grazing ducks and their eggs located within 25 km of the mine compared to those farther away, indicating severe contamination issues.
- Health risks from heavy metal exposure were highlighted, particularly a higher incremental lifetime cancer risk for local populations, especially affecting younger age groups, underscoring the need for ongoing health surveillance and control measures for poultry near the mine.
Genetic characterization of influenza A virus subtypes H11N6, H11N7, and H11N9 isolated from free-grazing ducks, Thailand.
Influenza Other Respir Viruses
July 2022
Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
Influenza A viruses (IAVs) infect avian species and several mammalian species including humans. Anseriformes water birds are an important reservoir of IAVs. In this study, we identified and characterized IAV subtypes H11N6 (n = 5), H11N7 (n = 3), and H11N9 (n = 3) isolated during the influenza surveillance program in free-grazing ducks from 2012 to 2015 in Thailand.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!