- A 22-year-old woman was bitten on the third finger of her left hand by a Walterinnesia aegyptia (desert black cobra). Local signs included a marked swelling of the entire hand with pain along the left upper limb. Systemic reactions were irritability, fever, tachycardia, ventricular premature beats, nausea and high blood leukocytes count. About 15 h post-envenomation the patient had no symptoms except for a mild swelling of the hand. Despite the severe toxic venom composition of the W. aegyptia , the clinical course of our patient was relatively benign. This could be explained by the snake's behavior and the mechanism by which the venom penetrates the body. A survey of the literature revealed only a few clinical cases reported. Most of the information concerning W. aegyptia was collected from laboratory and animal studies.