Define epidemics and highlight its characteristics and causes

Epidemics refer to the sudden outbreak and rapid spread of a disease within a specific population, geographic area, or community over a short period. In the context of the Foundation Course in Disaster Management, epidemics are classified as biological disasters due to their potential to affect large populations, overwhelm healthcare systems, and cause significant socio-economic disruptions. An epidemic becomes a disaster when it exceeds the coping capacity of the affected community and requires immediate intervention and management.

The World Health Organization (WHO) defines an epidemic as the occurrence of disease cases in excess of what is normally expected in a given population or region. The term can apply to infectious diseases like cholera, influenza, and dengue fever, as well as to non-communicable health events under certain circumstances, such as drug overdose outbreaks or even mental health crises.

Characteristics of Epidemics

1. Sudden Onset: Epidemics often begin suddenly and can escalate quickly. The disease may spread before being detected, making early diagnosis and _______ __________ ______ ________ ____ __________ ____ _______ __________.
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