Tuesday, August 16, 2011

Emedinews: Insights on Medicolegal issues - Insect, spider and scorpion stings and bites

The world's most venomous and poisonous insects are fire ants and the harvester ants

Insect venoms are comprised of amino acid peptides and proteins. Venoms may also contain allergenic proteins, which can trigger a potentially lethal immune response in sensitive individuals Biting and stinging are separate actions in ants. Some ants bite and do not sting. Some bite and spray venom on the bitten area. Some bite and inject formic acid with a stinger. Harvester and fireants bite and sting in a two-part process. The ants will grab hold with their mandibles, and then pivot around, repeatedly stinging and injecting venom.

• Do find out about the poisonous insects, caterpillars, spiders, and scorpions in your area. Learn what they look like and where they live.
• To protect yourself from bee stings when working among flowers or fruits, wear long trousers, long-sleeved shirts and gloves, and cover your head and face as much as possible. Avoid wearing things that attract bees, such as bright flowery clothing, bright shiny jewelry, buttons or buckles, or using scented perfume, soap or shampoo.
• Do not walk outdoors in bare feet or open shoes.
• Do not touch insects, caterpillars, spiders, scorpions, or centipedes.
• Do not put your hands in leaf litter, rotten tree trunks or holes where insects, caterpillars, spiders, scorpions or centipedes might live.

(Ref: IPCS, the United Nations Environment Programme, ILO and the World Health Organization)
(Contributed by Dr Sudhir Gupta)

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