spread of communicable disease across a large region, conntry to country is reffered to ?
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- Epidemic when the disease breaks out and spreads from place to place, affecting large numbers of people, e.g. plague in India in 1994 (from Surat, to many other places).
- Pandemic when the disease spreads throughout the world, e.g. AIDS.
- Sporadic when there are scattered individual cases of a disease, e.g. Malaria, Cholera.
- l Epidemiology : Branch of medicine which deals with the incidence, distribution and possible
- control of diseases and other factors relating to health.
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