[A collective malarial infestation during a humanitarian mission in west Africa].

Four truck drivers involved in a humanitarian mission across the Sahara towards Mali fell ill 15 days after their return. Plasmodium falciparum malaria (thankfully, non pernicious) was diagnosed with 3 to 4 days delay. The four drivers had been treated with chloroquine and proguanil but the dosage may have been insufficient with regard to their body weight (average weight = 110 kg).