Assertion: polio's infection | /r/Desires | an iron lung
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text: The term derives from the Ancient Greek poliós (πολιός), meaning "grey", myelós (µυελός "marrow"), referring to the grey matter of the spinal cord, and the suffix -itis, which denotes inflammation, i.e., inflammation of the spinal cord's grey matter, although a severe infection can extend into the brainstem and even higher structures, resulting in polioencephalitis, resulting in inability to breathe, requiring mechanical assistance such as an iron lung.