The estimation of duration of maternally-derived antibodies against Akabane,Aino, and Chuzan virus in calves by the receiver operating
characteristic analysis |
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Authors: | Jiro IWAMOTO Masahiro FURUKAWA |
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Institution: | 1)Kagoshima Prefectural Kagoshima Central Livestock Hygiene Service Center, 1678 Yuda, Higashiichiki-cho, Hioki, Kagoshima 899-2201, Japan |
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Abstract: | The duration of maternally-derived antibodies against three arboviruses was investigated in calves, using the results of arbovirus serosurveillance performed in Kagoshima Prefecture during 2002–2016. The duration of maternally-derived antibodies against Akabane virus (AKAV), Aino virus (AINOV), and Chuzan virus (CHUV) was estimated to be 178 (sensitivity: 0.769, specificity: 0.730), 156 (sensitivity: 0.806, specificity: 0.791), and 156 days of age (sensitivity: 0.845, specificity: 0.814), by receiver operating characteristic analysis. The duration of maternally-derived antibodies against AKAV, AINOV, and CHUV differed 7–14, 22–28, and 20–31 days in the same calf types between the regions far from each other although it was similar between the adjacent regions. The dairy calves showed 6–29 days longer duration than the beef calves rearing in a similar region. |
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Keywords: | arbovirus calf duration maternal antibody receiver operating characteristic analysis |
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