oa South African Medical Journal - Infantile rickets : its occurrence in non-Europeans in Johannesburg



The finding of many cases of rickets of all stages of severity is reported. The history and reported incidence of the occurrence of rickets in South Africa is reviewed. The climatic and geographical conditions in Johannesburg and the quality and quantity of its ultraviolet radiations have been analyzed and found to be sufficient to prevent the occurrence of rickets. The incidence of rickets in other parts of the world receiving adequate sunshine is mentioned and the local conditions responsible for the occurrence of rickets in these localities are discussed. The relationship that exists between urbanization and the rickets rate in a community is reviewed and the conditions and local customs responsible for rickets among non-European infants in Johannesburg is analyzed. A plea is made for adequate study of the problem of rickets in South Africa. Dietary additions of vitamin D is recommended for all urban non-European infants.


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