On a localised outbreak of typhoid fever in Islington, during the months of July and August, 1870, traced to the use of impure milk / by Edward Ballard.

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On a localised outbreak of typhoid fever in Islington, during the months of July and August, 1870, traced to the use of impure milk / by Edward Ballard. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.