Correction
==========


*   © 2008 Canadian Medical Association

In the Salon article about John Snow, an error was made about the date of his death.1 Snow died in 1858, thus making it 150 years since his death. *CMAJ* regrets the error and apologizes for any inconvenience it may have caused.

## REFERENCE

1.  1. Koch T. John Snow, hero of cholera: RIP. *CMAJ* 2008;178: 1736.