Sri Lankan krait (Bungarus ceylonicus) nocturnal envenomation: neurotoxic onset signs?
3 Answers from travellers
Bites from the endemic Ceylon Krait (Bungarus ceylonicus) or Common Krait (B. caeruleus) are notoriously deceptive because their tiny fangs leave almost invisible puncture marks without local swelling, redness, or pain. Victims bitten while sleeping on ground mats often wake with vague, non-specific complaints: dull abdominal cramps, sore throat, or mild body aches. Within hours, progressive descending neuromuscular paralysis sets in, presenting as bilateral ptosis (drooping eyelids), diplopia, dysphagia, and fatal respiratory failure. Prompt mechanical ventilation is essential for survival.
Always sleep under well-tucked mosquito nets and avoid sleeping directly on concrete or earthen floors in rural mud-brick structures or field stations.
Kraits enter dwellings at night hunting geckos and rodents; keeping living quarters clear of floor debris and food scraps deters them from entering.
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