A signal warned Dumbarton Castle of a smallpox outbreak in Gibraltar and barred shore access without recent vaccination. A Polish Air Force doctor travelling as a passenger was able to vaccinate the ship's company. The junior officer's memoir recalls the use of sewing needles sterilized in a candle flame.
Notable Point · 2:36:48-2:37:12
A smallpox warning prompts vaccination at sea
A passenger doctor vaccinated Dumbarton Castle's crew after a smallpox warning made recent vaccination a condition for going ashore in Gibraltar.