phuluong2k
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A random control test of 73 patches of hemophilus influenzae vaccines administered nationwide, The FDA discovered two lots in which the capsular polysaccharide of HI was not covalently coupled with the diptheria toxoid, which of the following immuologic responses happens in the childrens receiving the abnormal vaccine
a. They produce normal delayed hypersensitivity to HI
b. They produce normal IgA to HI
c. They produce normal IgG to HI
d. They produce normal IGM to HI
e. They produce normal natural killer to HI
f. They produce no response to HI
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| ssrpk
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f. They produce no response to HI
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| phuluong2k
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This q is from qbank
The given answer is d, only produce IgM, no class switching, toxoid makes the T cell dependent response, if there is no toxoid binding :arrow: T independent response.
Comment: if look at the H-I 2 question, when we say that polysaccharide of HI is hapten :arrow: I think f is right
Any one else ?
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| ferekide
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for d ..makes sense
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