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Epizootical geographic clusters of bovine leukemia virus infection in Japan
Takeo Sakai,Tomoyoshi Masshiyama,Setsuko Ohkubo,Chong Sam Yoon,Won Chang Lee 한국예방수의학회 1990 예방수의학회지 Vol.14 No.1
Sera of dairy cattle collected in Tochigi and Saitama Prefectures in 1986-1987 were examined for BLV antibody by agar gel immunodiffusion. In Tochigi Prefecture, 130 of a total of 2,279 sera were positive(mean positivity rate:5.7%), and a geographic cluster was observed in region with high positive rates(p<0.05). In Saitama Prefecture, 65 of the 2,103 samples were positive(mean positivity rate:3.1%), showing no geographic cluster of BLV infection as observed.