Smallpox Surveillance in Bangladesh: I - Development of Surveillance Containment Strategy

Abstract
Foster S O (World Health Organization Smallpox Eradication Program, People‘s Republic of Bangladesh), Ward NA. Joarder A K, Arnt N, Tarantola D, Rahman M and Hughes K. Smallpox surveillance in Bangladesh: Development of surveillance containment strategy. International Journal of Epidemiology 1980, 9: 329–334. A major epidemic of Variola major with an estimated 90 000 cases and 18 000 deaths occurred in Bangladesh in 1972. During a 3-year period methods of active surveillance (market search, outbreak investigation, and house-to-house search) were developed to supplement the passive reporting system. The percentage of smallpox cases detected increased from 11.8% in 1972 to 83% in 1975. Together with the implementation of improved methods of outbreak control, smallpox transmission was interrupted in October 1975.

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