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  • ants
  • Solenopsis are stinging ants and most of their common names reflect this, for example, ginger ants and tropical fire ants. (wikipedia.org)
  • The bodies of mature fire ants, like the bodies of all typical mature insects, are divided into three sections: the head, the thorax, and the abdomen, with three pairs of legs and a pair of antennae. (wikipedia.org)
  • myrmecine ants like fire ants have a dedicated venom-injecting sting, which injects an alkaloid venom, as well as mandibles for biting. (wikipedia.org)
  • Unlike many other ants, which bite and then spray acid on the wound, fire ants bite only to get a grip and then sting (from the abdomen) and inject a toxic alkaloid venom called solenopsin, a compound from the class of piperidines. (wikipedia.org)
  • Very few predators eat these ants due to their sting, but their larvae are often consumed by blindsnakes and echidnas, and a number of parasites infect both adults and brood. (wikipedia.org)
  • Myrmecia stings are very potent, and the venoms from these ants are among the most toxic in the insect world. (wikipedia.org)
  • A quarter of all victims stung by red imported fire ants are expected to develop sensitivity to the venom, and approximately 6,000 will suffer anaphylaxis. (wikipedia.org)
  • In a survey conducted in South Carolina, 33,000 people (or 94 per 10,000 population) received medical attention due to red imported fire ants, and 660 people (1.9 per 10 000 population) were treated for anaphylaxis. (wikipedia.org)
  • In Texas, 79% of participants in a survey stated they had been stung by red imported fire ants, while 20% had not. (wikipedia.org)
  • 61% of West Texans state they had been stung by the ants before, compared to 90% in central Texas, 89% in east Texas, 86% in the gulf coastal regions, 78% in the south and 72% in the north. (wikipedia.org)
  • venoms
  • The venom only has four protein allergens, which have been extensively investigated: this includes Sol i 2 and 4, which are not similar to other characterised proteins and have not been described in other insect venoms. (wikipedia.org)
  • arthropods
  • A stinger, or sting, is a sharp organ found in various animals (typically arthropods) capable of injecting venom, usually by piercing the epidermis of another animal. (wikipedia.org)
  • Among arthropods, a sting or stinger is a sharp organ, often connected with a venom gland and adapted to inflict a wound by piercing, as with the caudal sting of a scorpion. (wikipedia.org)
  • Tasmania
  • Myrmecia pilosula (jack jumper ant [JJA]) is the major cause of ant sting anaphylaxis in Tasmania. (mja.com.au)
  • Between 1980 and 2000, there were four deaths due to anaphylaxis from jack jumper stings, all of them in Tasmania. (wikipedia.org)
  • The ant was first identified in 1858 by British entomologist Frederick Smith in his Catalogue of hymenopterous insects in the collection of the British Museum part VI, under the binomial name Myrmecia pilosula from specimens he collected in Hobart in Tasmania. (wikipedia.org)
  • triggers
  • Anaphylaxis is a life-threatening allergic reaction that has many possible triggers, occurs quickly, without warning, and must be treated immediately with epinephrine. (biospace.com)
  • Physical factors such as exercise (known as exercise-induced anaphylaxis) or temperature (either hot or cold) may also act as triggers through their direct effects on mast cells. (wikipedia.org)
  • medicines
  • Some of the things that can cause bronchospasms are: consuming foods, taking medicines, allergic responses to insects, and fluctuating hormone levels, particularly in women. (wikipedia.org)
  • painful
  • For humans, this is a painful sting, a sensation similar to what one feels when burned by fire (hence the name) and the after effects of the sting can be deadly to sensitive people. (wikipedia.org)
  • Stinging insects produce a painful swelling of the skin, the severity of the lesion varying according to the location of the sting, the identity of the insect and the sensitivity of the subject. (wikipedia.org)
  • The stings of most of these species can be quite painful, and are therefore keenly avoided by many people. (wikipedia.org)
  • The bite itself may be painful thus resulting in poor sleep and worse work performance. (wikipedia.org)
  • They are characterised by their extreme aggressiveness, ferocity, and painful stings. (wikipedia.org)
  • immunotherapy
  • 2 A double-blind, randomised placebo-controlled trial has demonstrated the effectiveness of JJA venom immunotherapy (VIT) to reduce the risk of sting anaphylaxis, and an ongoing treatment and research program has been established. (mja.com.au)
  • Although well received by the popular press, her research was largely ignored by the scientific community, and it was not until the 1970s-after the publication of further research into venom immunotherapy by Lawrence M. Lichtenstein, Martin D. Valentine and Anne Kagey-Sobotka-that the U.S. Food and Drug Administration approved the use of venom extracts to treat patients with allergies to insect venom. (wikipedia.org)
  • repeatedly
  • Failure to administer epinephrine early in the course of treatment has been repeatedly implicated with anaphylaxis fatalities. (biospace.com)
  • Treatment requires keeping the person from being repeatedly bitten and possible symptomatic use of antihistamines and corticosteroids (either topically or systemically). (wikipedia.org)
  • strongly barbed
  • Unlike most other stings, honey bee workers' stings are strongly barbed and lodge in the flesh of mammals upon use, tearing free from the honey bee's body, killing the bee within minutes. (wikipedia.org)
  • spiders
  • Bites from more dangerous insects (such as black widow spiders, brown recluse spiders, and scorpions) are rare but life threatening, and must be treated in an emergency room. (kidshealth.org)
  • Spiders only bite, although some tarantulas have urticating hairs. (wikipedia.org)
  • common
  • This is the typical response for all biting insects and many people have this common reaction. (wikipedia.org)
  • Horse-flies or horseflies (for other names, see common names) are true flies in the family Tabanidae in the insect order Diptera. (wikipedia.org)
  • Apart from the common name "horse-flies", broad categories of biting, bloodsucking Tabanidae are known by a large number of common names. (wikipedia.org)
  • Bed bug bites are caused by bed bugs primarily of two species Cimex lectularius (the common bed bug) and Cimex hemipterus. (wikipedia.org)
  • stinger
  • They prey on small insects and use their barbless stinger to kill other insects by injecting venom. (wikipedia.org)
  • A few insects leave their stinger in the wound, but this is overstated. (wikipedia.org)
  • Although it is widely believed that a worker honey bee can sting only once, this is a partial misconception: although the stinger is in fact barbed so that it lodges in the victim's skin, tearing loose from the bee's abdomen and leading to its death in minutes, this only happens if the skin of the victim is sufficiently thick, such as a mammal's. (wikipedia.org)
  • The queen bee has a barbed but smoother stinger and can, if need be, sting skin-bearing creatures multiple times, but the queen does not leave the hive under normal conditions. (wikipedia.org)
  • 2 minutes later 6 minutes later, after the stinger has been removed 27 minutes later A bee sting 1 day after The stinger consists of three parts: a stylus and two barbed slides (or lancets), one on either side of the stylus. (wikipedia.org)
  • People
  • Of people who go to a hospital with anaphylaxis in the United States about 0.3% die. (dbpedia.org)
  • In the United States, more than 40 million people live in areas infested with fire ant populations and 14 million people are stung by them annually. (wikipedia.org)
  • 51% of people who relocated themselves to infested areas report getting stung within three weeks after arrival. (wikipedia.org)
  • responses
  • Individual responses to bites vary, ranging from no visible effect (in about 20-70%), to small macular spots, to prominent wheals and bullae formations along with intense itching that may last several days. (wikipedia.org)