TABLE 1.1.

Deaths from Cholera Epidemic in Districts of London Supplied by Two Water Companies, 7 Weeks, 1854

Water Supply Company	Number of Houses	Deaths from Cholera	Cholera Deaths/10,000 Houses
Southwark and Vauxhall	40,046	1,263	315
Lambeth	26,107	98	37
Rest of London	256,423	1,422	59

Sources: Snow J. On the mode of transmission of cholera. 1854. In: Snow on cholera: a reprint of two papers. New York: Commonwealth Fund; 1936. Sack DA, Sack RB, Nair GB, Siddique AK. Cholera. Lancet 2004;363:223–33. Available at: http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(03)15328-7/abstract [Accessed 11 August 2012].