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hognose venom
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by nerodiaJr on November 10, 2009
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My cousin is severly allergic to bees, would he have a worse reaction to a hognose bite than a person who is not allergic to bees?
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RE: hognose venom
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by Cro on November 10, 2009
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It is difficult to say, but folks who have one type of allergy often tend to have allergies to other substances.
Bee venom is quite different from snake venom.
I know folks who can eat many types of sea food, but who are deathly allergic to shirmp, or, to crabs, etc., but not allergic to anything else that comes from the ocean
The only way to know for sure would involve having tests run at a allergy clinic. Each individual, and each immune system is different.
Best Regards
John Z
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RE: hognose venom
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by pitbulllady on November 11, 2009
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I agree with John here. While it is common for people to have allergies to different substances, it's also common for people to be allergic to one thing, yet be unphased by something similar, so it's really impossible to say if a person would or would not be allergic to this or that, based on a prior allergy history. I'm deathy allergic to almonds, for example, yet I can eat pecans, walnuts, cashews and other tree-grown nuts with no problem.
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RE: hognose venom
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by nerodiaJr on November 11, 2009
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Thanks for the responses. I was a little worried because he bought a hognose at Columbia and it seems to be quite defensive. He wanted me to be the first one to hold it, so I picked her up and she immediatly tried to bite the palm of my hand and then latched on to my finger for about 15-20 seconds.
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RE: hognose venom
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by Crotalusssp on November 11, 2009
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Do not worry about a little nip. Do not, however allow the snake to hang on and/or chew. Their toxins are really intended for amphibians, but mammalian reactions have occurred and cannot be ruled out.
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RE: hognose venom
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by kacz on November 12, 2009
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This is "old school" stuff, so let me know if I'm incorrect. An initial exposure to an antigen can occur without causing any reaction. However, once the body is sensitized additional exposures can be trouble. If this is true, don't be lulled into a false sense of security because the first "nip" wasn't a problem.
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RE: hognose venom
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by Crotalusssp on November 12, 2009
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It is certainly true that initial exposure to antigens elicit and immune response and cause retention of memory B cells that will allow for a stronger immune response upon subsequent exposure. My statement about not worrying about a nip is because Heterodon sp. have a poor delivery system for the venom they do have and is very unlikely to deliver any in a nip. Given the chance to hang on and chew, such as in a feeding response bite, venom can and will be delivered. This sort of comes back to the original question of whether to be concerned about being sensitive to the venom because of other allergies. Bee venom and Heterodon venom are different, but mammalian reaction to Heterdon venom has been seen and cannot be ruled out. Given the poor delivery system, venom differences, and general mild nature of most Heterodon, a problem such as a anaphylatic reaction due to envenomation is unlikely. This all being said, persons should be aware, not careless, and take some precautions, realizing that risk in relatively low.
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RE: hognose venom
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by BGF on November 13, 2009
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Allergies by bites are not likely to happen. This stimulates the production of IgG (the productive antibody) which causes the immune system to suppress the production of IgE (the allergic antibody). That is why people who are allergic to bees, ants etc. undergo immunotherapy consisting of small injections.
Venom allergies however are easy to develop from nasal and occular exposure. That is why venom researchers and venom production workers need to wear sealed masks and also clear tight goggles (such as swim goggles). It is also why people who keep spitting cobras or messy feeding snakes that leave lots of venom around to dry in the cage (e.g. big rattlesnakes are notorious for this) should wear the same when cleaning the cages.
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RE: hognose venom
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by BGF on November 13, 2009
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To clarify: allergy development CAUSED by bites are rare. However once allergic, bites can and will set off full-scale anaphylactic shock. Something I have gone into twice from envenomation and it is easily the most terrifying and unpleasent experiences I have ever had!!
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