Polio largely vanished thanks to vaccines. So why is it now back in more countries?
on 2022-09-02
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(Lauren Pelley/ CBC News) — Polio, a potentially disabling virus that’s long been forgotten in many parts of the world, is now circulating in parts of the U.S. and U.K., on the heels of an outbreak in Israel — prompting health officials to launch vaccination campaigns to ensure the public is protected.
Even in Canada, …