2019
Development of a live attenuated trivalent porcine rotavirus A vaccine against disease caused by recent strains most prevalent in South Korea
Park J, Alfajaro M, Cho E, Kim J, Soliman M, Baek Y, Park C, Lee J, Son K, Cho K, Kang M. Development of a live attenuated trivalent porcine rotavirus A vaccine against disease caused by recent strains most prevalent in South Korea. Veterinary Research 2019, 50: 2. PMID: 30616694, PMCID: PMC6323864, DOI: 10.1186/s13567-018-0619-6.Peer-Reviewed Original ResearchConceptsVaccine strainTrivalent vaccineKorean swine industrySevere economic lossesHomologous virulent strainPorcine rotavirusSwine industryEconomic lossesSerum virus-neutralizing antibodiesExperimental pigletsVirulent strainCell culture passageFecal secretory IgAChallenge exposureVirus-neutralizing antibodiesRecent strainsPigletsVirulentConsecutive passagesRotavirus diseaseIgA levelsRotavirus vaccineOral immunizationHistopathological lesionsVaccine
2016
Pathogenesis of Korean SapelovirusA in piglets and chicks
Kim D, Kang M, Son K, Bak G, Park J, Hosmillo M, Seo J, Kim J, Alfajaro M, Soliman M, Baek Y, Cho E, Lee J, Kwon J, Choi J, Goodfellow I, Cho K. Pathogenesis of Korean SapelovirusA in piglets and chicks. Journal Of General Virology 2016, 97: 2566-2574. PMID: 27487773, PMCID: PMC5078829, DOI: 10.1099/jgv.0.000571.Peer-Reviewed Original ResearchConceptsExtra-intestinal organsHigher viral RNA levelsNon-suppurative myelitisViral RNA levelsReal-time reverse transcription PCRCells of pigsIntestinal pathologyReverse transcription-PCRViral antigensViral pathogenesisReproductive disordersSapelovirus APathogenesisPorcine sapelovirusVirus entryCultured cell linesRNA levelsEpithelial cellsTranscription-PCRFecal samplesPigletsPneumoniaCell linesSialic acidPathology
2014
Comparison of pathogenicities and nucleotide changes between porcine and bovine reassortant rotavirus strains possessing the same genotype constellation in piglets and calves
Park J, Kim D, Matthijnssens J, Kwon H, Zeller M, Alfajaro M, Son K, Hosmillo M, Ryu E, Kim J, Lee J, Park S, Kang M, Kwon J, Choi J, Cho K. Comparison of pathogenicities and nucleotide changes between porcine and bovine reassortant rotavirus strains possessing the same genotype constellation in piglets and calves. Veterinary Microbiology 2014, 172: 51-62. PMID: 24861840, DOI: 10.1016/j.vetmic.2014.04.010.Peer-Reviewed Original ResearchConceptsHost range restrictionGenotype constellationHistopathological changesCritical molecular determinantsSmall intestineReassortant rotavirusesComparison of pathogenicityDiarrheic pigletsPathological phenotypesDifferent virulenceReassortant strainsPigletsCalvesNSP4 genesSpecific mutationsAmino acid substitutionsRotavirus evolutionMolecular determinantsNSP3 genePathogenicityVirulenceAcid substitutionsNucleotide changesDiarrheaRotavirus
2013
Different virulence of porcine and porcine-like bovine rotavirus strains with genetically nearly identical genomes in piglets and calves
Park J, Kim H, Matthijnssens J, Alfajaro M, Kim D, Son K, Kwon H, Hosmillo M, Ryu E, Kim J, Cena R, Lee J, Kang M, Park S, Cho K. Different virulence of porcine and porcine-like bovine rotavirus strains with genetically nearly identical genomes in piglets and calves. Veterinary Research 2013, 44: 88. PMID: 24083947, PMCID: PMC3851489, DOI: 10.1186/1297-9716-44-88.Peer-Reviewed Original ResearchConceptsHistopathological changesSmall intestineGroup A rotavirusesDirect interspecies transmissionGenotype constellationCritical molecular determinantsFull-length sequencing analysisA rotavirusesBovine rotavirusVP1-VP4Pathological phenotypesDifferent virulencePigletsDiarrheaInterspecies transmissionAmino acid mutationsRotavirusCalvesIntestineSpecific mutationsTropismMolecular determinantsSequencing analysisUntranslated regionPorcine
2012
Pathogenicity characterization of a bovine triple reassortant rotavirus in calves and piglets
Kim H, Park J, Alfajaro M, Kim D, Hosmillo M, Son K, Lee J, Bae Y, Park S, Kang M, Cho K. Pathogenicity characterization of a bovine triple reassortant rotavirus in calves and piglets. Veterinary Microbiology 2012, 159: 11-22. PMID: 22465801, DOI: 10.1016/j.vetmic.2012.03.017.Peer-Reviewed Original ResearchConceptsExtra-intestinal organsMesenteric lymph nodesCross-species pathogenicityReassortant rotavirusesLymph nodesIntestinal pathologyPersistent severe diarrheaSevere intestinal pathologyExtra-intestinal infectionsDiarrhea fecal samplesReal-time RT-PCRGreen real-time RT-PCRSYBR Green real-time RT-PCRSevere diarrheaCerebrospinal fluidChoroid plexusViral replicationRotavirusRT-PCRViral RNAFecal samplesPigletsDiarrheaPublic healthPathology