Antibiotics today.
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000266:history*; D000903:Antibiotics, Antineoplastic; D000998:Antiviral Agents; D004352:Drug Resistance, Microbial; D049673:History, 20th Century
D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic; D000998:Antiviral Agents