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Insect venom hypersensitivity

Source: www.theucbinstituteofallergy.com
Topic: Insect Stings
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Sort Desciption: Despite the great variety of biting and stinging insects only wasps, bees and bumblebees and occasionally horse ies are able to cause severe allergic reactions in humans. ...

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It is impossible to predict the risk for developing a systemic allergic reaction to a next sting in the individual patient with a history of previous allergic sting reactions. However, studies have shown that the risk is approximately 10% in case of previous large local reactions, 25% in case of a previous systemic reaction to a wasp sting and 50% in case of a previous systemic reaction to a bee sting. The risk is lower in children and higher in patients with mastocytosis. There is little doubt that the more severe the previous systemic reaction was, the greater the risk for an even more severe reaction on a next sting. A rst life threatening reaction is, therefore, an absolute indication for venom immunotherapy. © The UCB Institute of Allergy 05/2006. How to avoid stings? 1. Avoid picnics and barbecues. 2. Over-ripe fruit, dustbins and rubbish heaps attract wasps. 3. Avoid strong physical activities outside in hot weather. 4. Avoid mowing lawns, cutting hedges and working on balconies, in gutters, brushwood, abandoned houses or old attics. 5. Avoid hives and ower beds. 6. Do not wear bright coloured or black clothing. 7. Never walk bare-foot on lawns. 8. Avoid strongly perfumed deodorants, after-shave lotions, hair sprays and sun creams. 9. Avoid abrupt or zigzag movements when an insect is approaching. 10. Never kill a bee or wasp near its nest. © The UCB Institute of Allergy 05/2006. What to do in case of a sting 1. General rule: 2. For individuals with a history of hypersensitivity reactions: Prevention of severe allergic reactions to insect stings. © The UCB Institute of Allergy 05/2006. Some characteristics of bees, wasps or ...

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