摘要:Priority communicable disease surveillance (PCDS): Surveillance of priority communicable diseases started with a view to build up an early warning system. The diseases selected for reporting under this surveillance are: (1) Diarrhoeal diseases (Acute watery diarrhoea and Bloody dysentery), (2) Malaria, (3) Kala-azar, (4) Tuberculosis, (5) Leprosy, (6) Encephalitis and (7) Unknown diseases. These diseases were selected for reporting from all levels to the national head quarter on a weekly basis, but on a daily basis during an outbreak situation. Upazila Health and Family Planning Officer (UH&FPO) and Civil Surgeons (CS) are responsible for conducting this surveillance locally.