Pregnant women are at higher risk of transmitting the infections to their foetus. This prompted the “Prevention of Mother to Child Transmission (PMTCT) Program” in Malaysia since 1998. The objective of this cross sectional study was to determine the knowledge, attitude and practice (KAP) of pregnant mothers in the west of Sabah towards HIV/AIDS and its influencing factors. Data were obtained through self administered questionnaires. Results showed that only 32.2% of the
respondents have good knowledge compared to 67.8% who had poor knowledge (p