Eradication of infectious diseases

complete extermination of disease-causing agent to reduce its incidence to zero

Eradication is the lowering of an infectious disease's existence in the global host population to zero.[1] It is sometimes confused with elimination, which describes either the reduction of an infectious disease's prevalence in a regional population to zero. One of the best example that was eradicated disease to be gone was smallpox.


  1. Dowdle WR (1998). "The principles of disease elimination and eradication". Bulletin of the World Health Organization. 76 Suppl 2 (S2): 22–5. PMC 2305684. PMID 10063669.