Venom organ failure. Many caterpillars have defensive venom glands associated with specialized bristles on the body, known as urticating hairs, which can be lethal to humans (e.g., that of the "Lonomia" moth), although the venom's strength varies depending on the species. Bees synthesize and employ an acidic venom (apitoxin) to cause pain in those that they sting to defend their hives and food stores, whereas wasps use a chemically different alkaline venom designed to paralyze prey, so it can be stored alive in the food chambers of their young. The use of venom is much more widespread than just these examples.
Toxicology of red imported fire ant venom entire body of the ant and not just the venom, and unlike fire ant venom immunotherapy (which is occasionally used), WBE contains venom proteins. To reduce a patient's sensitivity to the venom, gradual increases of dose extracts are injected into the body. WBE immunotherapy appears to be very effective in preventing systemic reactions; in one study of participants who completed WBE immunotherapy, two out of fifteen participants suffered from allergic reactions upon being stung 18 months after immunotherapy. As mentioned, fire ant venom immunotherapy is occasionally used, and studies show it can reduce the risk of systemic reactions. In fact,