title: Approaches to new antibacterial and antiviral antibiotics.
mesh_terms: D000818:Animals; D018943:Anthracyclines; D000900:Anti-Bacterial Agents / Q000096:biosynthesis / Q000494:pharmacology*; D000903:Antibiotics, Antineoplastic / Q000494:pharmacology; D000935:Antifungal Agents / Q000494:pharmacology; D000998:Antiviral Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D004353:Drug Evaluation, Preclinical; D005658:Fungi / Q000187:drug effects*; D007783:Lactones / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D009279:Naphthacenes / Q000494:pharmacology; D009285:Naphthoquinones / Q000494:pharmacology; D009618:Nocardiaceae / Q000378:metabolism; D011741:Pyrimidine Nucleosides; D013302:Streptomyces / Q000378:metabolism; D014498:Uracil; D014780:Viruses / Q000187:drug effects*
chemical_list: D018943:Anthracyclines; D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic; D000935:Antifungal Agents; D000998:Antiviral Agents; D007783:Lactones; D009279:Naphthacenes; D009285:Naphthoquinones; D011741:Pyrimidine Nucleosides; C018070:griseorhodins; C009142:epsilon-pyrromycinone; C009329:streptovirudin; D014498:Uracil; C018091:maduramicin; C027400:sarubicin A