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History
2 min read
How a transoceanic voyage used successively inoculated foundling children to save millions from smallpox without refrigeration
History
2 min read
In 1803, before refrigeration, a medical expedition transported the live smallpox vaccine across two oceans through bodily relays in children.
History
2 min read
In 1803, before refrigeration, a doctor crossed oceans preserving the smallpox vaccine arm-to-arm across 22 orphans.