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April 3, 1943

Foreign Letters

JAMA. 1943;121(14):1172. doi:10.1001/jama.1943.02840140056016

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Abstract

LONDON LETTER  (From Our Regular Correspondent)Feb. 20, 1943.

Stamping Out of an Imported Outbreak of Smallpox  Smallpox has been stamped out of this country, but cases arrive from time to time from other countries. A ship from Bombay and Capetown docked on May 29 at Glasgow with 1,000 passengers and 200 crew. A sick engineer was found to have confluent smallpox which proved fatal. All on board were immediately vaccinated, but on June 23 another 7 of the crew, 2 passengers and a contact medical officer had developed the disease. This was disappointing, for in 5 of the cases vaccination must have been done early in the incubation period— between the first and fifth days—when it usually confers protection. On the other hand, smallpox did not attack any of the 163 members of the crew who had been vaccinated on a previous voyage in 1940. Of those attacked 1

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