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Allergies

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Allergies

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  1. Allergies • Immediate hypersensitivity • Excessive IgE production in response to allergens (antigens)

  2. Allergic Reaction • B cells secretes allergen specific Ig • Helper T release cytokines which tell B cells to make IgE • B cell switches from IgG to IgE • IgE binds to mast cells and basophils • Next exposure triggers these cells to secrete histamine, prostaglandins, etc.

  3. Allergic Reaction • Common Allergens • Foods • Insect venom • Molds • Animal dander • Pollen

  4. ‘Bee’ Sting Responses

  5. ‘Bee’ Sting Response • After your first bee sting reaction, future bee stings double and triple in severity. • True • False

  6. ‘Bee’ Sting Response • After your first bee sting reaction, future bee stings double and triple in severity. • False – Most studies show that repeated stings appear to have a lesser reaction.

  7. ‘Bee’ Sting Response • Elderly individuals are more susceptible to severe reactions. • True • False

  8. ‘Bee’ Sting Response • Elderly individuals are more susceptible to severe reactions. • False – As you age, your histamine production declines.

  9. ‘Bee’ Sting Response • Bees can see and sting in the dark. • True • False

  10. ‘Bee’ Sting Response • Bees can see and sting in the dark. • Neither. Bees can’t see in the dark but they can STILL sting!

  11. ‘Bee’ Sting Response • Severe anaphylactic reactions usually occur in the first 5-10 minutes.. • True • False

  12. ‘Bee’ Sting Response • Severe anaphylactic reactions usually occur in the first 5-10 minutes.. • False – 15-30 minutes is the average. Reactions may occur up to 5 hours later but 60% occur in the first hour. • Source of quiz: www.surviveoutdoors.com/reference/beeswasps/indes.asp

  13. ‘Bee’ Sting Response • If you are allergic to bee stings, then you are automatically allergic to wasp stings. • True • False

  14. ‘Bee’ Sting Response • If you are allergic to bee stings, then you are automatically allergic to wasp stings. • False – Bee venom and wasp venom differ. You can be allergic to either but only a small % are allergic to both. Source: http://wasps.ucr.edu/waspfaq.html#topic3

  15. Bibliography • Buchmann, Dr. Stephen. 2004. “What’s Buzzin in my Garden.’ http://www.pollinator.com/identify/whatsbuzzin.htm • Caron, Dewey M. 1999. Honey Bee Biology and beekeeping. Wicwas Press, LLC. • Raven, Peter H., et al. 2008. Biology, 8th ed. McGraw Hill Higher Education. New York, N.Y. • Survive Outdoors, Inc. 2006. Bee stings. www.surviveoutdoors.com/reference/beeswasps/index.asp • Vetter, R.S. 2004. Misconceptions about Yellowjackets. http://wasps.ucr.edu/waspfaq.html#topic3