Jezek Z, Hardjotanojo W
Bull World Health Organ. 1980;58(1):139-40.
In order to assess the frequency of occurrence of facial pockmarks after recovery from variola minor, 175 subjects from 5 localities in Somalia were carefully examined a year after recovery from variola minor infections. Only 7% had facial pockmarks (the usual criteria for "positive" classification in facial pockmark surveys). Thus, pockmark surveys cannot be considered useful for evaluating the past smallpox situation in areas where variola minor has been prevalent. A number of other subjects had discolorations of the skin on their faces or bodies, but these are of dubious value for survey purposes.
为了评估轻型天花康复后面部麻子出现的频率，在索马里5个地区的175名受试者在轻型天花感染康复一年后接受了仔细检查。只有7%的人有面部麻子（这是面部麻子调查中“阳性”分类的通常标准）。因此，麻子调查不能被认为对评估轻型天花曾流行地区过去的天花情况有用。其他一些受试者面部或身体皮肤有变色，但这些对于调查目的价值存疑。
