Abstract:We studied the infection and dynamic patterns of bluetongue virus in Shizong County, Yunnan Province in recent years. Ten healthy cows and 5 healthy goats which were not infected with bluetongue virus were selected to monitor bluetongue in Shizong County from 2014 to 2016 for three consecutive years. In each year, the blood of the selected animals was collected once a week from May to October and once a month in November and December. We used the serum samples and the heparin anticoagulant blood samples for bluetongue antibody detection and virus isolation respectively. Infection rate of bluetongue virus was 35.56% from 2014 to 2016 and the positive seroconverted time of the antibody was June to October. These results indicated that the animals infected with bluetongue virus were mainly focused on June to October of every year and the prevention and control of bluetongue should be strengthened in this period. The 16 of 45 animals have been infected with bluetongue virus, and nine strains BTV have been isolated from seven animals in this Bluetongue monitoring. The nine BTV strains belong to serotypes BTV-2, -4, -9, -12, and -16 in which four strains belong to serotypes BTV-16, suggested that BTV-16 were the prevalent serotype in Shizong County. The results of virus isolation and identification showed that multiple serotype bluetongue virus were prevalent in Shizong County, and exsited in long-term.
孟锦昕,何于雯,肖雷,李楠,宋建领,王静林,李华春. 云南省师宗县牛羊蓝舌病病毒感染情况及活动规律监测[J]. 中国人兽共患病学报, 2018, 34(6): 537-541.
MENG Jin-xin, HE Yu-wen, XIAO Lei, LI Nan, SONG Jian-ling, WANG Jing-lin, LI Hua-chun. Dynamic monitoring and infection on bluetongue virus in cattle and goats in Shizong County, Yunnan. Chinese Journal of Zoonoses, 2018, 34(6): 537-541.
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