title: Variation aids virulent invaders.
authors: Gregory D
authors: GD
authors: Larsen
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics* / Q000378:metabolism; D002682:Chinchilla; D006192:Haemophilus Infections / Q000276:immunology / Q000382:microbiology*; D006193:Haemophilus influenzae / Q000187:drug effects / Q000235:genetics* / Q000472:pathogenicity*; D010641:Phenotype
chemical_list: D001426:Bacterial Proteins