The parent of a child receiving the polio vaccine wants to know why the oral polio vaccine (OPV) is not given. The nurse will explain to this parent that the oral preparation:
a. can cause paralytic poliomyelitis.
b. contains antigens that increase allergic reactions.
c. is less effective than the IPV.
d. is more expensive to administer.
ANS: A
The OPV is composed of live virus and has the potential to cause paralytic poliomyelitis; therefore, it is no longer given. The oral form is no more antigenic than the IPV, and the latter is just as effective. The oral form is not more expensive.
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