oa South African Medical Journal - Diptheria immunization in Johannesburg and Boksburg from 1935 to 1955

Volume 29, Issue 53
  • ISSN : 0256-9574
  • E-ISSN: 2078-5135



The risk at present of contracting diphtheria on the Witwatersrand during the first 20 years of life is not less than 2.5 - 3.0 %. It is highest in areas of low socioeconomic standard.

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