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January 7, 1939

Pneumococcus Types in South Africa: A Study of Their Occurrence and Distribution in the Population and the Effect Thereon of Prophylactic Inoculation

JAMA. 1939;112(1):81. doi:10.1001/jama.1939.02800010083030

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This little pamphlet contains some interesting information concerning the investigations on pneumonia which have been under way in South Africa for a number of years. In 1913 Lister reported, independently of Dochez and Gillespie, a biologic classification of pneumococci based on bacteriologic studies of pneumonia among the mine workers of South Africa. The various types were designated by the letters of the alphabet, A, B, C and so on. In this report Ordman correlates the South African alphabetical types with the American numerical types and generously consents to use the American classification in all future reports. It is interesting to note that in South Africa pneumococcus types I, II and III are the dominant types just as they are in America and Europe. Types V, VII, VIII and XIV are also fairly common in South Africa. A polyvalent pneumococcus vaccine containing types I, II, III, V, VII, XII and XIV

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