Evolution, antigenicity and pathogenicity of global porcine epidemic diarrhea virus strains.
Emerging and re-emerging coronaviruses cause morbidity and mortality in human and animal populations, resulting in serious public and animal health threats and economic losses. The ongoing outbreak of a highly contagious and deadly porcine epidemic diarrhea virus (PEDV) in Asia, the Americas and Europe is one example. Genomic sequence analyses of PEDV variants have revealed important insights into the evolution of PEDV. However, the antigenic variations among different PEDV strains are less explored, although they may contribute to the failure of PEDV vaccines in Asian countries. In addition, the evolution of PEDV results in variants with distinct genetic features and virulence differences; thus PEDV can serve as a model to explore the molecular mechanisms of coronavirus evolution and pathogenesis. In this article, we review the evolution, antigenic relationships and pathologic features of PEDV strains. This information and review of researches will aid in the development of strategies for control and prevention of PED.
Food Animal Health Research Program, Ohio Agricultural Research and Development Center, College of Food, Agricultural and Environmental Sciences, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA. Electronic address: lin.1903@osu.edu.
Chun-Ming
CM
Lin
Food Animal Health Research Program, Ohio Agricultural Research and Development Center, College of Food, Agricultural and Environmental Sciences, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA. Electronic address: saif.2@osu.edu.
Linda J
LJ
Saif
Department of Veterinary Population Medicine and Veterinary Diagnostic Laboratory, University of Minnesota, 1333 Gortner Avenue, St. Paul, MN 55108, United States. Electronic address: marth027@umn.edu.
Douglas
D
Marthaler
Food Animal Health Research Program, Ohio Agricultural Research and Development Center, College of Food, Agricultural and Environmental Sciences, Department of Veterinary Preventive Medicine, The Ohio State University, Wooster, OH, USA. Electronic address: wang.655@osu.edu.
Qiuhong
Q
Wang
D000818:Animals; D000940:Antigenic Variation; D017934:Coronavirus / Q000145:classification / Q000235:genetics / Q000276:immunology; D018352:Coronavirus Infections / Q000662:veterinary*; D056738:Cross Protection / Q000276:immunology; D003429:Cross Reactions / Q000276:immunology; D019143:Evolution, Molecular; D014943:Global Health; D010802:Phylogeny; D053485:Porcine epidemic diarrhea virus / Q000145:classification / Q000235:genetics* / Q000276:immunology* / Q000472:pathogenicity; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000517:prevention & control / Q000821:virology*; D014765:Viral Vaccines / Q000276:immunology; D014774:Virulence
D014765:Viral Vaccines
Antigenicity; Coronavirus; Cross-protection; Cross-reactivity; Evolution; Pathogenicity; Porcine epidemic diarrhea; Porcine epidemic diarrhea virus