NEWS: IISc Bengaluru’s Centre for Ecological Sciences (CES) + Technical University of Denmark (DTU) developed an experimental antibody cocktail against venom from multiple cobra species, published in Science Translational Medicine.

SNAKEBITE CHALLENGES

• Neurotoxins: Cause paralysis + respiratory failure.
• Venom Variation: Composition varies across species + geographical regions.
• Antivenom Limitation: Conventional Indian polyvalent antivenom targets the Big Four snakes but may not effectively neutralise all cobra venoms.
• India’s Burden: Around 50,000 snakebite deaths annually, as reported in the article.
• Delayed Treatment: Limited access to timely healthcare + antivenom in rural areas.

INDIA’S BIG FOUR

• Spectacled cobra (Naja naja)
• Common krait (Bungarus caeruleus)
• Russell’s viper (Daboia russelii)
• Saw-scaled viper (Echis carinatus)

NEW ANTIBODY COCKTAIL

• Source: Selected antibodies developed using immune responses in alpacas + llamas exposed to venom.
• Mechanism: Combines antibodies to recognise + neutralise toxins from different cobra species.
• Testing: Tested in mice against spectacled cobras, monocled cobras + two king cobra species.
• Result: Protected tested mice from death even when administered 30 minutes after venom injection.

SIGNIFICANCE

• Potential for broader-spectrum snakebite treatment.
• May address species-specific limitations of existing antivenoms.
• Limitation: Experimental; human safety + efficacy remain to be established.