Blue Krait

A highly neurotoxic krait responsible for severe nocturnal envenomings in Southeast Asia.

GenusBungarus

RegionAsiaSoutheast Asia

Photo: Rushen · Source: Wikimedia Commons · License: CC BY-SA 2.0

Blue Krait

Photo: Rushen · Source: Wikimedia Commons · License: CC BY-SA 2.0

Blue Krait

Danger Score

Final Danger Score

Venom Core

Lethality weighted 55% (potency × yield). Clinical weighted 45% (real-world CFR).

0.55 × 50 + 0.45 × 9168.5

Modifiers

Multiplicative scalers - amplify or reduce existing danger, can't create it from nothing.

× Speed (1.01)69.1

× Delivery (1.00)69.1

× Encounter (0.86)59.5

Speed = antivenom window. Delivery = fang efficiency. Encounter = exposure × temperament.

Score59

Type

NeurotoxicAffects the nervous system; disrupts nerve-muscle communication and can cause paralysis or respiratory failure.

Venom Yield

Very Low

Venom Speed

Quick

Delivery Method

Fixed front fangs

Potency (SC Equivalent)

0.210mg/kg LD50

Max Dry Yield

8mg dry

Fatality (Untreated)

25-50%

WHO Importance

Cat. 1

Local Effects

Pain at bite site

Neurological

Drooping eyelids, Paralysis, Difficulty breathing

Gastrointestinal

Abdominal pain or cramps

Causes of Death

Respiratory failure