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Table 7 Reported encephalopathic cases following ivermectin mass treatment from 1989 to 2001*

From: Serious adverse events following treatment with ivermectin for onchocerciasis control: a review of reported cases

Type of Encephalopathy No. of cases from Cameroon No. of cases from other countries Total no. of cases
Probable L. loa encephalopathy† 33 0 33
Possible L. loa encephalopathy† 30 32
Encephalopathy of other known etiology 1‡ 0 1
Encephalopathy of unknown etiology 33 4|| 37
Total 97 6 103
  1. *cases reported as of August 31, 2002; †See note 2 for definitions; ‡case of cerebral malaria; §Central African Republic = 1 case; Sudan (southern) = 1 case; ||Democratic Republic of Congo = 2 cases; Sudan (southern) = 1 case; Nigeria = 1 case.