Best Answer

For the same reason that some people are allergic to peanuts or milk and others aren't. It's partly environmental (based on your exposure to the offending item) and partly genetic. My brother used to catch and crush (yeah he was troubled) bees, and they often stung him. One day he had a severe reaction and has to avoid bees. Maybe it's karma but his doctor says he developed the allergy thru overexposure to bee venom. Other people can have a fatal reaction to their first bee sting.

Overexposure to an allergen will result in excessive production of IgE. B Cells in our body usually produce IgG displayed on their surface and very little of this IgG is changed to IgE (a process called Class Switching) in non-respondng individuals. For those who become allergic due to to overexposure the class switching (from IgG to IgE) increases, IgE is the antibody which can bind with mast cells and Basophils which contain active substances leading to allergic reactions. Depending upon the location these active chemicals (Histamine etc) can produce vasodilation, increased permeability of blood vessels, bronchospasm, excessive production of mucous which results in symptoms we see.

User Avatar

Wiki User

2011-10-30 05:44:12
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: Why do some people have allergic reactions to insects and others do not?
Write your answer...
Still have questions?
magnify glass
Related questions

Why do some people have allergic reactions to certain vaccines?

yes some people are allergic to certain vaccines.

Do tannins cause allergic reactions in people?


How do allergic reactions occur?

Allergic reactions are genetically determined, and different substances cause contact dermatitis to develop in different people.

Which pets are better for people with allergies?

Every person has a different set of allergies. Some people are allergic to dogs, others to cats. People who risk allergic reactions with their preferences may invest in hypo-allergenic breeds of cats or dogs.

Do Pugs cause allergic reactions?

Yes but not to all people. Mostly the people many allergies and are well allergic to dogs.

Can you be allergic to vodka?

Yes, you can be allergic to vodka. Different people can have different reactions to different foods and drinks. If people are allergic to wheat, vodka can cause a reaction.

Why are so many people allergic to shellfish?

The issue is that many people who are allergic to "shellfish" are susceptible to more than one kind. For some it may be prawns, and for others it may be crabs. These two specific types contain proteins, in a higher concentration, that cause severe allergic reactions in some people.

What is the fear of latex gloves?

Some people are allergic to latex and it causes severe allergic reactions this is why they are being replaced.

What happens when a person gets stung by a bee?

For some people, nothing happens. For others, allergic reactions cause people to swell, have shortness of breath, or even encounter fatal situations.

What allergic reactions can you get from jasmine the plant?

Jasmine is a vine-like plant that is known to trigger an allergic reaction in some people. Allergic reactions that you can get from Jasmine include rhinitis, sneezing, runny nose, dizziness, nausea and headache.

Why do some people have Celiac disease and others don't?

Some people are allergic to gluten while others are not. Gluten makes people allergic to it sick with celiac.

Can you have an allergic reaction to a magnolia tree?

Yes tree pollen including magnolias can cause some people to have allergic reactions.

People also asked