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Studies on the epidemiology of bluetongue virus in China

Published online by Cambridge University Press:  25 April 2002

P. D. KIRKLAND ,
N. ZHANG ,
R. A. HAWKES ,
Z. LI ,
F. ZHANG ,
R. J. DAVIS ,
D. A. SANDERS ,
H. LI ,
K. ZHANG  and
J. BEN
...Show all authors
P. D. KIRKLAND
Affiliation:
New South Wales Agriculture, Elizabeth MacArthur Agricultural Institute, Camden, NSW 2570, Australia
N. ZHANG
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
R. A. HAWKES
Affiliation:
New South Wales Agriculture, Elizabeth MacArthur Agricultural Institute, Camden, NSW 2570, Australia
Z. LI
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
F. ZHANG
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
R. J. DAVIS
Affiliation:
New South Wales Agriculture, Elizabeth MacArthur Agricultural Institute, Camden, NSW 2570, Australia
D. A. SANDERS
Affiliation:
New South Wales Agriculture, Elizabeth MacArthur Agricultural Institute, Camden, NSW 2570, Australia
H. LI
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
K. ZHANG
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
J. BEN
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
G. F. HE
Affiliation:
Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Jindian, Kunming, Peoples Republic of China
C. L. HORNITZKY
Affiliation:
New South Wales Agriculture, Elizabeth MacArthur Agricultural Institute, Camden, NSW 2570, Australia
N. T. HUNT
Affiliation:
Northern Territory Department of Primary Industry and Fisheries, Berrimah Agricultural Research Centre, Berrimah, Northern Territory 0828, Australia
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Abstract

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Sentinel herds of large ruminants were established at five centres in Yunnan Province, Peoples Republic of China, between 1995 and 1997. The application of a sensitive antigen capture ELISA to facilitate virus isolation procedures led to the isolation of 108 strains of bluetongue (BLU) virus. Serotypes isolated included types 1, 2, 3, 4, 9, 11, 12, 15, 16, 21 and 23. Virus transmission occurred over a period of 1–3 months at each of the four positive sites, giving an overall BLU virus transmission period for the province of 5 months, from early June to early November. The greatest level of transmission took place in July and August. The duration of viraemia in individual animals varied from 1 to 7 weeks, with a mean calculated for each serotype between 6 and 20 days. The study represents the first detailed investigation of the epidemiology of BLU in China utilizing sentinel herds.

Type
Research Article
Information
Epidemiology & Infection , Volume 128 , Issue 2 , April 2002 , pp. 257 - 263
Copyright
© 2002 Cambridge University Press