1989 saw the PSMID tackle issues of clinical importance. The President, Dr. Mediadora Saniel (1989) created working committees such as the Antibiotic Task Force and the Infection Control Committee. This in turn set the foundation for the Society’s later ventures towards establishing practice standards, and on policy positions related to public health issues.

By the ‘90’s, the Society emerged as an assertive leader and pioneering resource of infectious disease expertise. The initiatives of Dr. Thelma Tupasi (1990-1991) left imprints, which had influenced certain issues and blazed trails in standardizing the practice of infectious diseases in the country. PSMID officially became a member of the Western Pacific Society of Chemotherapy on December 1991, and the International Society of Chemotherapy on June 1991. This debuted PSMID as a voice in the international arena with its later hostings of international meetings.