1921
Volume 10, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
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Abstract

Summary

Body lice from Wad Medani in the Sudan Republic, tested with the World Health Organization kit, showed an LC of 2.4% for DDT and 1.15% for BHC. These values indicate, respectively, an 8- and 12-fold increase since 1954 in the tolerance to these insecticides; resistance to either insecticide was 25 times that of normal strains of lice. Susceptibility of the lice to pyrethrins was normal.

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/content/journals/10.4269/ajtmh.1961.10.773
1961-09-01
2017-11-22
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