The Department of Pathology, headed by Professor Carlos Escoffery, provides laboratory and clinical training for undergraduate and graduate students, as well as maintains modern laboratories in hematology, chemical, surgical pathology, as well as cytology offering service to the hospital and the region. The Department is heavily involved in the HTLV-1 research project in collaboration with the National Cancer Institute and the National Institutes of Health in the U.S.A. Other research projects include epidemiology, natural history and descriptive pathology of various cancers.

The Department of Microbiology, headed by Professor John Lindo, provides diagnostic and clinical training for undergraduate and graduate students, as well as provide diagnostic service to the hospital. Research in this department covers the areas of blood stream infections, antibiotic resistance of various infectious diseases as well as immunological and molecular studies of the human immunodeficiency virus.