title: Virulence and antigenicity of Hemophilus ducreyi.
mesh_terms: D001419:Bacteria; D006191:Haemophilus ducreyi; D006193:Haemophilus influenzae; D006801:Humans; D007251:Influenza, Human; D009975:Orthomyxoviridae; D014774:Virulence
keywords: BACTERIA/influenza