Some Problems in New Antibiotic Research

It is certainly a difficult work to find out novel-type "practical" antibiotic from natural sources. In fact, chemically modified antibiotics, such as synthetic penicillins, cephalosporins, derivatives of tetracycline, lincomycin, rifamycin and kanamycin are most widely used in medical practice at present. However, as the possibility of success gained by chemical modification is limited, it would be the buty of our applied microbiologists to offer novel antibiotics to chemist and physician without interruption. In this lecture, some practical problems in new antibiotic research will be discussed.(중략)