What does VAPP stand for in the context of OPV safety concerns?

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Study for the Poliovirus and Poliomyelitis Test. Prepare with engaging flashcards and detailed multiple-choice questions, each with hints and explanations. Ace your exam with confidence!

Multiple Choice

What does VAPP stand for in the context of OPV safety concerns?

Explanation:
Vaccine-associated paralytic poliomyelitis describes the rare paralysis that can occur after receiving the oral polio vaccine. The oral vaccine contains live attenuated poliovirus, and in a small number of cases the vaccine virus can mutate and regain the ability to cause paralysis, affecting the vaccinated person or a close contact. This is the situation the acronym VAPP specifically refers to. It’s distinct from vaccine-derived poliovirus, which refers to mutated vaccine-derived strains that can circulate in a population and potentially cause outbreaks, even if not every case is paralytic.

Vaccine-associated paralytic poliomyelitis describes the rare paralysis that can occur after receiving the oral polio vaccine. The oral vaccine contains live attenuated poliovirus, and in a small number of cases the vaccine virus can mutate and regain the ability to cause paralysis, affecting the vaccinated person or a close contact. This is the situation the acronym VAPP specifically refers to. It’s distinct from vaccine-derived poliovirus, which refers to mutated vaccine-derived strains that can circulate in a population and potentially cause outbreaks, even if not every case is paralytic.

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