Detection and molecular characterization of porcine toroviruses in Korea.
This study examined the prevalence and genetic diversity of the porcine torovirus (PToV) in Korea. Of 295 samples, 19 (6.4%) samples tested positive for PToVs by RT-PCR. A low nucleotide sequence identity of the partial S gene was detected among the Korean PToVs (73.5%) and between the Korean and European PToVs (74.0%). Phylogenetic analysis of the spike and nucleocapsid genes showed that the Korean PToVs form distinct branches with clusters corresponding to the farm of origin, which were separate from the other known foreign PToVs. These findings suggest that genetically diverse Korean PToV strains cause sporadic infections in Korea.
Shin
Dong-Jun
DJ
Biotherapy Human Resources Center, College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea.
Park
Sang-Ik
SI
Jeong
Young-Ju
YJ
Hosmillo
Myra
M
Kim
Ha-Hyun
HH
Kim
Hyun-Jeong
HJ
Kwon
Hyung-Jun
HJ
Kang
Mun-Il
MI
Park
Su-Jin
SJ
Cho
Kyoung-Oh
KO
D000818:Animals; D016000:Cluster Analysis; D007723:Korea; D010802:Phylogeny; D015995:Prevalence; D012367:RNA, Viral / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid; D013552:Swine; D013553:Swine Diseases / Q000453:epidemiology* / Q000821:virology*; D017003:Torovirus / Q000145:classification* / Q000235:genetics* / Q000302:isolation & purification; D018176:Torovirus Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology
D012367:RNA, Viral