Inappropriate activation of the immune system

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Mother Nature uses a "fail-safe system" to prevent inappropriate activation of the immune system. Provide several examples of this strategy.

Read through the following scenario, then answer the questions below: A 2-year old boy presents with high fever and very swollen lymph nodes in the neck. The pediatrician orders a series of viral titers to measure exposure to 3 viruses. Below are the results of IgM and IgG

antibody titers.

Epstein -Barr virus

Igm negative

IgG negative

Cytomegalovirus

IgM positive

IgG negative

Coxsackie virus

IgM negative

IgG positive

Answer the following questions and be sure to explain your reasoning:

  • Which virus is this boy currently infected by? Why?
  • Which virus has this boy been infected by in the past? Why?
  • Which virus has the boy never been exposed to? Why?

Reference no: EM13926524

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