1912A.W. HodsonTrekking Great Thirst 109Dr. Rutherford is of opinion that the sickness at Otse is amaas, or Kaffir milk-pox.
1972E.H. Cluver inStd Encycl. of Sn Afr.VI. 90The relative prevalence of smallpox among the Bantu is attributable..also to the fact that the disease commonly occurs in a mild form known as amaas. This may go unrecognised, although the infection is caused by the true smallpox virus, which when conveyed to Europeans will cause the very serious disease in unvaccinated persons.
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