title: Correlation of pathogenicity and gene constellation of influenza A viruses. II. Highly neurovirulent recombinants derived from non-neurovirulent or weakly neurovirulent parent virus strains.
mesh_terms: D000818:Animals; D001921:Brain / Q000382:microbiology; D002645:Chickens; D046508:Culture Techniques; D005814:Genes, Viral; D009980:Influenza A virus / Q000235:genetics / Q000472:pathogenicity*; D008168:Lung / Q000382:microbiology; D051379:Mice; D011995:Recombination, Genetic; D014774:Virulence