title: Sentinel herd study of bluetongue virus in Puerto Rico. Preliminary results, January 1991.
authors.affiliation: Veterinary Services, U.S. Department of Agriculture, Arecibo, Puerto Rico 00613.
authors.forename: J
authors.initials: J
authors.lastname: Shaw
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood*; D001819:Bluetongue / Q000453:epidemiology*; D001820:Bluetongue virus / Q000276:immunology*; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D002519:Ceratopogonidae; D015331:Cohort Studies; D011446:Prospective Studies; D011647:Puerto Rico / Q000453:epidemiology
chemical_list: D000914:Antibodies, Viral