Pathogenicity of influenza virus.
D000328:Adult; D000818:Animals; D001424:Bacterial Infections / Q000150:complications; D002478:Cells, Cultured; D005260:Female; D005289:Ferrets; D005315:Fetal Diseases / Q000503:physiopathology; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000503:physiopathology; D007251:Influenza, Human / Q000503:physiopathology; D008297:Male; D051379:Mice; D009092:Mucous Membrane / Q000382:microbiology; D009928:Organ Specificity; D009975:Orthomyxoviridae / Q000235:genetics / Q000254:growth & development / Q000276:immunology / Q000472:pathogenicity*; D011247:Pregnancy; D011995:Recombination, Genetic; D012137:Respiratory System / Q000382:microbiology; D014774:Virulence; D014779:Virus Replication