During the 1913 smallpox epidemic, Māori were required to present a certificate to confirm they had been vaccinated before they could travel by train. This was one of the public health measures introduced to contain the disease.
Te whakamahi i tēnei tūemi
Archives New Zealand - Te Rua Mahara o te Kāwanatanga
Reference: R 3 Acc W2334 box 13 item 1913 3819 Certificate
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