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Bluetongue virus in sheep and cattle and Culicoides variipennis and Culicoides stellifer (Diptera: Ceratopogonidae) in Louisiana



Bluetongue virus in sheep and cattle and Culicoides variipennis and Culicoides stellifer (Diptera: Ceratopogonidae) in Louisiana



Journal of Medical Entomology 30(4): 719-724



The transmission and bluetongue virus (BLU) to sheep and cattle relative to Culicoides abundance and infection was studied in two areas of the Louisiana State University Agricultural Center, Baton Rouge, LA. The seroprevalence of BLU in beef cattle was 70.5% in 1989 and 37.0% in 1990; 2 of 37 animals tested in both years became positive, indicating active transmission. The prevalence of BLU in sheep decreased from 52.2% in 1989 to 34% in 1990; seroconversion was not detected.

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Accession: 008238503

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