Which Statement Regarding Polio Vaccines Is False

question 44

Multiple Choice

Which statement regarding polio vaccines is False?

• A) OPV is an oral, attenuated vaccine. It provides better mucosal immunity than IPV and it can transmit immunity from person to person.
• B) OPV does not require an injection and is cheaper, but it requires refrigeration and may occasionally cause the disease.
• C) The rare cases of polio that still occurred in the U.S. after poliovirus was eliminated were caused by vaccine-derived poliovirus (VDPV).
• D) IPV is unreliable at eliciting production of mucosal antibodies as demonstrated when polio occurred in a country that previously relied only on IPV vaccination.
• E) The small risk of developing poliomyelitis due to vaccine-derived poliovirus led the United States to change to the routine use of OPV only. 

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