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Credit
Mr John Spear's report to the local government board upon the prevalence of scarlatina in the Yeadon urban sanitary district, and upon the general sanitary condition of that district. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.