Author:
Ana Maria Seabra van Zeller
Report:
Annual Report 31
Page:
117
Year:
2004
Subject Matter:
People in Portugal
Excerpt:
Maria Isabel Witenhall van Zeller became notable in Porto for propogating the smallpox vaccine that had been first developed by Jenner (1746-1823). She personally vaccinated around 13400 people, despite objections from both the medical profession and the Church.
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