antimicrobial chemotherapy antimicrobial chemotherapy antimicrobial chemotherapy is the clinical application of antimicrobial agents to treat infectious disease. there are five types of antimicrobial chemotherapy: antibacterial chemotherapy, the use of antibacterial drugs to treat bacterial infections antifungal chemotherapy, the use of antifungal drugs to treat fungal infections anthelminthic chemotherapy, the use of antihelminthic drugs to treat worm infections antiprotozoal chemotherapy, the use of antiprotozoal drugs to treat protozoan infections antiviral chemotherapy, the use of antiviral drugs to treat viral infections