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—Powerful evidence as to the value of mass vaccination against poliomyelitis and the safety of Sabin oral vaccine was released by the Ministry of Health in a report on the polio outbreak in Kingston-upon-Hull in 1961. It was the first occasion on which mass oral vaccination was carried out in Britain. It is stated that, although the exact part played by the vaccine cannot be clearly defined, it is an undisputed fact that the outbreak of poliomyelitis ended shortly after the mass vaccination procedure was undertaken. The epidemic began in the late autumn, but it was not until early October, when the figures rose alarmingly, that a decision was made to employ mass vaccination. The campaign began on Oct 17, when 65 cases in the city had been confirmed, and within 8 days, 358,000 people in Hull (55,000 more than the city population) and an additional 14,400 from
UNITED KINGDOM. JAMA. 1963;184(2):160. doi:10.1001/jama.1963.03700150114026