权威例句
Comparative pathology of chickens experimentally inoculated with avian influenza viruses of low and high pathogenicity.Preparation of inactivated oil-emulsion vaccines with avian viral or Mycoplasma antigensAssessment of the ability of ratite-origin influenza viruses to infect and produce disease in rheas and chickens.Pathogenicity and diagnosis of H5N2 Mexican avian influenza viruses in chickens.Sinusitis in turkeys associated with respiratory cryptosporidiosisAn Arg-Lys insertion at the hemagglutinin cleavage site of an H5N2 avian influenza isolate.Immunization of chickens and turkeys against avian influenza with monovalent and polyvalent oil emulsion vaccinesHighly Pathogenic Virus Recovered from Chickens Infected with Mildly Pathogenic 1986 Isolates of H5N2 Avian Influenza VirusIsolation of avian influenza virus (subtype H5N2) from chicken eggs during a natural outbreak.Emergence of highly pathogenic virus during selective chicken passage of the prototype mildly pathogenic chicken/Pennsylvania/83 (H5...