Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Ulcer on the wrist probably due to cowpox. St Bartholomew's Hospital Archives & Museum. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Ulcer on the wrist probably due to cowpox. St Bartholomew's Hospital Archives & Museum. Source: Wellcome Collection.