African Sleeping Sickness Is Fatal If Not Treated Because the Parasite

question 29

Multiple Choice

African sleeping sickness is fatal if not treated because the parasite

• A) produces a non-immunogenic toxin the immune system cannot neutralize.
• B) reproduces so fast there is no time for an immune response to develop.
• C) is an intracellular parasite in RBCʹs, where they are not detected by the immune system.
• D) produces a toxin which binds irreversibly to neurons.
• E) evades destruction by the immune system by changing surface antigens.

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