§ Commander Keransasked the Minister of Health how many of those who 4W recently died of smallpox in the United Kingdom had been vaccinated in the last three years.
§ Miss PittTwo immigrants died, both of whom held on arrival valid international certificates of recent revaccination. Of the 24 United Kingdom residents who died, none had been vaccinated or revaccinated within the previous three years, except eight who were vaccinated or revaccinated after contact with smallpox.
§ Commander Keransasked the Minister of Health what is the safe period of immunity in vaccination for smallpox.