Arachnids differ from insects mainly in the number of legs they possess: eight instead of six. There are two important orders from the toxicological point of view: Scorpionida and Aranea, both belonging to subphylum Chelicerata. Wasp stings are common, especially during the warmer months when people are outside for longer periods of time. Wasp stings can be uncomfortable, but most people recover quickly and without complications. Wasps, like bees and hornets, are equipped with a stinger as a means of self-defense. A wasp’s stinger contains venom (a poisonous substance) that’s transmitted to humans during a sting. While a bee can only sting once because its stinger becomes stuck in the skin of its victim, a wasp can sting more than once during an attack. Wasp stingers remain intact.

This topic describes: Venomous Arachnids, Scorpion Bite (Order scorpionida), Wasp Stings/Bites – Mode of Action, Clinical Features, Treatment and Complications.

Envenomations – Arthropod bites and stings

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