Polio in Israel. Alex Goldberg 8 th Grade Science - Emerald. Polio. Polio is a virus that can infect humans when they drink water polluted with sewage from other infected humans In about 98% of cases, polio is a mild illness, with no symptoms or minor symptoms.
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8th Grade Science - Emerald
An Egyptian carving from around 1400 BCE depicting a young man with a leg deformity probably caused by polio.