MCAT Question of the Day
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    Q:

    		 Viral serotypes are classified by differing surface antigens. Rhinovirus has over 100 known serotypes. In order for a vaccine to be effective against most rhinovirus infections, which of the following should be true?
    		 

    A

    		 High conservation of all surface antigens between the different serotypes.

    B

    		 High conservation of at least one important surface antigen between the different serotypes.

    C

    		 No conservation of at least one important surface antigen between the different serotypes.

    D

    		 No conservation of any surface antigens between the serotypes.



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