1887

oa South African Medical Journal - Control of typhoid fever by vaccination

 

Abstract

Owing to a high and increasing prevalence of typhoid fever in the north-eastern Transvaal of South Africa, it was decided to attempt control through the vaccination of children of school-going age.

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/content/m_samj/43/46/AJA20785135_33643
1969-11-01
2016-12-03
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