title: [Changes in pathogens in infectious diseases].
mesh_terms: D001419:Bacteria / Q000472:pathogenicity; D005658:Fungi / Q000472:pathogenicity; D006801:Humans; D007239:Infections / Q000382:microbiology*; D012281:Rickettsia / Q000472:pathogenicity; D014780:Viruses / Q000472:pathogenicity