Serological characteristics of affected cattle during an outbreak of bovine enzootic encephalomyelitis caused by Akabane virus |
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Authors: | Jae-Ku Oem Yeon-Hee Kim Seong-Hee Kim Myoung-Heon Lee Kyoung-Ki Lee |
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Institution: | 1. Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, 480 Anyang-6-Dong, Anyang, 430-824, Republic of Korea 2. Viral Disease Diagnostic Laboratory, Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, 480 Anyang-6-Dong, Anyang, 430-824, Republic of Korea
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Abstract: | During an outbreak of bovine enzootic encephalomyelitis caused by the Akabane virus (AKAV) in 2010, 210 serum samples were collected from the affected cattle, and serological investigations for the AKAV were performed using a serum neutralization test (SNT) and an enzyme-linked immunosorbent assay (ELISA). The seropositive rates for SNT and ELISA were 90.0 and 85.2 %, respectively. The titers of SNT (log2) against the AKAV were higher than 4.0 in the highly affected cattle (80.0 %). This finding indicates that most affected cattle were infected with the AKAV and that strong immune responses against this virus were elicited in affected cattle. The strong immune response to the AKAV in cattle may provide insight into the occurrence of bovine encephalomyelitis caused by the AKAV. |
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