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The history of polio and the vaccines that nearly eradicated it – The Washington Post


The virus, transmitted by mouth or through feces, reproduces in the blood and then invades the nervous system. At its worst, it attacks the anterior horn cells, which tell the muscles what to do.

Killing those cells is like “cutting the wire to a lamp,” said Walter A. Orenstein, an associate director at the Emory Vaccine Center focused on polio eradication. “The electricity is out and the muscle becomes flaccid. You can’t use it.”

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Harry Miller is a writer and editor based in Toronto with 14 years of experience in the journalism industry. Before joining Canada News Media as a National Online Journalist, Miller worked as a senior writer and a reporter-editor with the Canadian Press and as a breaking news reporter with the Toronto Star. At Canada News Media he covers national news and the trending stories Canadians are searching for. Miller holds two bachelor's degrees, one in journalism from Ryerson University and another in communications and film studies from Carleton University.

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