due to Snow's theory and data on the pattern of infection, and infection rates dropped significantly. Lankester eventually was named the first medical officer of health for St James's parish in London, the same area where the pump was located. Broadwick Street pump in the 21st century A replica pump was installed in 1992 at the site of the 1854 pump. Every year the John Snow Society holds "Pumphandle Lectures" on subjects of public health. Until August 2015, when the pump was removed due to redevelopment, they also held a ceremony here in which they removed and reattached the pump handle to pay tribute to Snow's historic discovery. The original location of the historic pump is marked by a red granite paver. In addition, plaques on the John Snow pub at the corner describe the significance of Snow's findings at this site. Gallery See also Epidemiology of tuberculosis Filippo Pacini Great Stink Joseph Bazalgette The Ghost Map William Budd Diseases and epidemics of the 19th century References Sources See also: Mode of Communication of Cholera(John Snow, 1855) Further reading External links Interactive version of John Snow's Map (Ghost Map) Microorganisms in water from the Broad Street Pump History of medicine in the United Kingdom 1854 in London 1854 in science 1854 Health in London Thames Water 1854 disease outbreaks Water supply and sanitation in London Disease outbreaks in England Soho, London Health in the City of Westminster 19th century in the City of Westminster 19th-century epidemics Spatial epidemiology August 1854 events September 1854 events