A student was exposed to parasitic worms on a recent field trip to the tropics. Under these conditions, which antibody levels would be higher than normal?


AIgA
BIgG
CIgD
DIgM
EIgE

Verified Answer :

Final answer:

The exposure to parasitic worms would lead to an increase in IgE antibody levels, which are crucial for combating such infections. IgE helps mediate the immune response against parasitic worms. Other antibodies like IgA, IgG, IgD, and IgM serve different roles in immunity and would not show elevated levels specifically due to parasitic infections.


Explanation:

Answer to Antibody Levels After Parasitic Infection

When a student is exposed to parasitic worms, the immune response typically involves an increase in the levels of certain antibodies. In this scenario, the antibody levels that would be higher than normal is IgE.

IgE antibodies are specifically associated with allergic responses and reactions against parasitic infections, including those caused by helminths (parasitic worms). When the body detects such parasites, it stimulates the production of IgE to help mediate the immune response, particularly involving mast cells and eosinophils, which play key roles in combating parasitic infections.

In contrast:

  • IgA is primarily found in mucosal areas and protects against pathogens in those regions.
  • IgG is the most abundant antibody in circulation and provides long-term protection but is more associated with bacterial and viral infections.
  • IgD has a less understood role in the immune response, mainly found on the surface of B cells.
  • IgM is the first antibody produced in response to an infection, relevant for initial immune responses.

In summary, the body's response to parasitic infections would lead to an increase in IgE levels to effectively target and eliminate the worms from the system.


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