The prevalence and genetic diversity of group A rotaviruses on pig farms in the Mekong Delta region of Vietnam. Pham, H. A., Carrique-Mas, J. J., Nguyen, V. C., Ngo, T. H., Nguyet, L. A., Do, T. D., Vo, B. H., Phan, V. T. M., Rabaa, M. A., Farrar, J., Baker, S., & Bryant, J. E. Veterinary microbiology, 170(3-4):258–265, June, 2014. doi abstract bibtex Group A rotaviruses (ARoVs) are a common cause of severe diarrhea among children worldwide and the cause of approximately 45% of pediatric hospitalizations for acute diarrhea in Vietnam. ARoVs are known to cause significant economic losses to livestock producers by reducing growth performance and production efficiencies, however little is known about the implications of asymptomatic endemic circulation of ARoV. We aimed to determine the prevalence and predominant circulating genotypes of ARoVs on pig farms in a southern province of Vietnam. We found overall animal-level and farm-level prevalence of 32.7% (239/730) and 74% (77/104), respectively, and identified six different G types and 4 P types in various combinations (G2, G3, G4, G5, G9, G11 and P[6], P[13], P[23], and P[34]). There was no significant association between ARoV infection and clinical disease in pigs, suggesting that endemic asymptomatic circulation of ARoV may complicate rotavirus disease attribution during outbreaks of diarrhea in swine. Sequence analysis of the detected ARoVs suggested homology to recent human clinical cases and extensive genetic diversity. The epidemiological relevance of these findings for veterinary practitioners and to ongoing pediatric ARoV vaccine initiatives in Vietnam merits further study.
@article{pham_prevalence_2014,
title = {The prevalence and genetic diversity of group {A} rotaviruses on pig farms in the {Mekong} {Delta} region of {Vietnam}.},
volume = {170},
copyright = {Copyright (c) 2014 The Authors. Published by Elsevier B.V. All rights reserved.},
issn = {1873-2542 0378-1135},
doi = {10.1016/j.vetmic.2014.02.030},
abstract = {Group A rotaviruses (ARoVs) are a common cause of severe diarrhea among children worldwide and the cause of approximately 45\% of pediatric hospitalizations for acute diarrhea in Vietnam. ARoVs are known to cause significant economic losses to livestock producers by reducing growth performance and production efficiencies, however little is known about the implications of asymptomatic endemic circulation of ARoV. We aimed to determine the prevalence and predominant circulating genotypes of ARoVs on pig farms in a southern province of Vietnam. We found overall animal-level and farm-level prevalence of 32.7\% (239/730) and 74\% (77/104), respectively, and identified six different G types and 4 P types in various combinations (G2, G3, G4, G5, G9, G11 and P[6], P[13], P[23], and P[34]). There was no significant association between ARoV infection and clinical disease in pigs, suggesting that endemic asymptomatic circulation of ARoV may complicate rotavirus disease attribution during outbreaks of diarrhea in swine. Sequence analysis of the detected ARoVs suggested homology to recent human clinical cases and extensive genetic diversity. The epidemiological relevance of these findings for veterinary practitioners and to ongoing pediatric ARoV vaccine initiatives in Vietnam merits further study.},
language = {eng},
number = {3-4},
journal = {Veterinary microbiology},
author = {Pham, Hong Anh and Carrique-Mas, Juan J. and Nguyen, Van Cuong and Ngo, Thi Hoa and Nguyet, Lam Anh and Do, Tien Duy and Vo, Be Hien and Phan, Vu Tra My and Rabaa, Maia A. and Farrar, Jeremy and Baker, Stephen and Bryant, Juliet E.},
month = jun,
year = {2014},
pmid = {24679960},
pmcid = {PMC4003349},
keywords = {*Genetic Variation, Animals, Animals, Newborn, Feces/virology, Genotype, Phylogeny, Prevalence, Regression Analysis, Risk Factors, Rotavirus Infections/*epidemiology/*virology, Rotavirus/classification/genetics/*physiology, Rotaviruses, Swine, Vietnam, Vietnam/epidemiology, pigs},
pages = {258--265},
}
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All rights reserved.","issn":"1873-2542 0378-1135","doi":"10.1016/j.vetmic.2014.02.030","abstract":"Group A rotaviruses (ARoVs) are a common cause of severe diarrhea among children worldwide and the cause of approximately 45% of pediatric hospitalizations for acute diarrhea in Vietnam. ARoVs are known to cause significant economic losses to livestock producers by reducing growth performance and production efficiencies, however little is known about the implications of asymptomatic endemic circulation of ARoV. We aimed to determine the prevalence and predominant circulating genotypes of ARoVs on pig farms in a southern province of Vietnam. We found overall animal-level and farm-level prevalence of 32.7% (239/730) and 74% (77/104), respectively, and identified six different G types and 4 P types in various combinations (G2, G3, G4, G5, G9, G11 and P[6], P[13], P[23], and P[34]). There was no significant association between ARoV infection and clinical disease in pigs, suggesting that endemic asymptomatic circulation of ARoV may complicate rotavirus disease attribution during outbreaks of diarrhea in swine. Sequence analysis of the detected ARoVs suggested homology to recent human clinical cases and extensive genetic diversity. 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