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The stinger of a black bee attached to protective dressing. Insect sting allergy is the term commonly given to the allergic response of an animal in response to the bite or sting of an insect. [1] Typically, insects which generate allergic responses are either stinging insects (wasps, bees, hornets and ants [2]) or biting insects (mosquitoes ...
Less commonly (around 10% of Hymenoptera sting reactions), a large local reaction occurs when the area of swelling is greater than 10 centimetres (4 in). Rarely (1-3% of Hymenoptera sting reactions), systemic reactions can affect multiple organs and pose a medical emergency, as in the case of anaphylactic shock. [2] [3]
Most humans can withstand many stings, but others may suffer from severe reactions such as anaphylaxis. [45] People who are stung by red imported fire ants may experience intense local burning or flare-ups, followed by reddening of the skin at the sting site. This area will swell into a bump, hive or vesicle within 20 minutes. White fluid ...
The description of barbed or unbarbed is not precise: there are barbs on the stings of yellowjacket wasps and the Mexican honey wasp, but the barbs are so small that the wasp can sometimes withdraw its sting apparatus from victim's skin. [7] The stings of some wasps, such as those of the Polistes versicolor, contain relatively large amounts of ...
[67] [68] [69] Wasp nests made in or near houses, such as in roof spaces, can present a danger as the wasps may sting if people come close to them. [70] Stings are usually painful rather than dangerous, but in rare cases, people may suffer life-threatening anaphylactic shock. [71]
Parasitic infestations, stings, and bites in humans are caused by several groups of animals belonging to the following phyla—Arthropoda, Chordata, Cnidaria, Nemathelminthes, Platyhelminthes, Annelida, and Protozoa
Anaphylactoid reaction, non-immune anaphylaxis, or pseudoanaphylaxis, is a type of anaphylaxis that does not involve an allergic reaction but is due to direct mast cell degranulation. [ 10 ] [ 42 ] Non-immune anaphylaxis is the current term, as of 2018, used by the World Allergy Organization [ 42 ] with some recommending that the old ...
Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [2] The patches of rash may appear on different body parts, [2] with variable duration from minutes to days, and do not leave any long-lasting skin change. [2]