title: Human H5N1 vaccines--WHO produces guidance on virus composition.
mesh_terms: D000818:Animals; D005060:Europe; D006287:Health Planning Guidelines; D006801:Humans; D053124:Influenza A Virus, H5N1 Subtype / Q000737:chemistry* / Q000276:immunology* / Q000502:physiology; D007252:Influenza Vaccines / Q000592:standards* / Q000627:therapeutic use*; D007251:Influenza, Human / Q000517:prevention & control* / Q000821:virology*; D014944:World Health Organization
chemical_list: D007252:Influenza Vaccines