The Causes and Symptoms of Poliomyelitis (536 words, 2 pages)
Poliomyelitis, is a serious infection caused by a virus. In the past, epidemics of polio were common and were greatly feared because the disease left many patients paralyzed for life (Fetzer). In the 1950s, however, a vaccine against the disease was introduced. Since then, polio has been nearly eliminated in ...
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