Quoted from the Glossary of Antimicrobial Chemotherapy (Japanese Society of Chemotherapy), the Annual Report of the Japanese Society of Antimicrobials for Animals 36 (2014), and the Guidelines for the Use of Antimicrobial Substances in Cooperative Livestock Insurances (2009, Ministry of Agriculture, Forestry and Fisheries)[Reference] There are multiple relevant terminologies with different definitions. However, in medical practice, the following four terms are often used interchangeably to refer drugs that act against bacteria: "antimicrobial agents," "antibiotics," "antibiotic agents," and "antibacterial agents." In the areas of agriculture and livestock, the expressions "antibacterial agents" and "antimicrobial agents" are commonly used, because these agents are not only used for therapeutic purposes, but also in antibiotic feed additives.Antimicrobial agents or antimicrobials: Antimicrobial agents, or antimicrobials, are active against microorganisms, which are generally categorized into bacteria, fungi, viruses and parasites. These are the general term for drugs to treat and prevent infectious diseases. They contain antibacterial agents, antifungal agents, antiviral agents and antiparasitic agents. Antibacterial agents: Antimicrobial agents that are active against bacteria. Antibiotics: informally defined as an agent that is derived from living organisms to inhibit and control cell activities of microorganisms Antibiotic agents: Another term for drugs that use the antibacterial action of antibiotics Reference: the Manual of Antimicrobial Stewardship, 1st edition * Prepared from [3] with partial modification. JVARM "Results of Monitoring of Antimicrobial Resistant Bacteria Isolated from Food-producing Animals on Farms" ** Target values were quoted from [1].