A vaccine for the common cold is not possible because
A) the surface antigens of rhinovirus mutate frequently.
B) there are more than 100 types of rhinovirus.
C) the causative agent of colds is unknown.
D) the rhinovirus cannot be grown in sufficient quantities.
E) rhinoviruses are resistant.
Correct Answer:
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Q32: About 60% of the bacterial pneumonias that
Q33: Which is/are True of the causative agents
Q34: The pneumococcal vaccine is directed against the
A)
Q35: Which antibiotics may be completely ineffective in
Q36: Colds are effectively treated with
A) antibiotics.
B) aspirin
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A)
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