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.
- Ballard, Edward, 1820-1897.
- Date:
- 1871
Licence: Public Domain Mark
Credit: 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. Source: Wellcome Collection.
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