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From:Weekly Epidemiological Record (Vol. 97, Issue 15-16)Since the Global Polio Eradication Initiative (GPEI) was established in 1988, the number of reported poliomyelitis cases worldwide has decreased by approximately 99.99%. By the end of 2021, wild poliovirus (WPV) remained...
From:Weekly Epidemiological Record (Vol. 97, Issue 15-16)-...
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