Disease surveillance is an epidemiological practice by which the spread of disease is mentioned in order to establish patterns of progression. The main role of Priority Communicable Disease Surveillance (PCDS) is to predict, observe, and minimize the harm caused by outbreak, epidemic, and pandemic situations, as well as increase our knowledge to what factors might contribute to such circumstances. A key part of modern disease surveillance is the practice of disease case reporting.
Objective
Surveillance of priority communicable diseases started with a view to build up an early warning system for certain important public health important diseases in Bangladesh, namely: (1) Diarrheal disease (acute watery diarrhea and bloody dysentery); (2) Malaria; (3) Kala-azar; (4) Tuberculosis; (5) Leprosy; (6) Encephalitis; (7) Unknown diseases of public health concern.