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RT @WHO: #AfricaKicksOutWildPolio During 2000-2010, the number of annual wild poliovirus cases has dropped 📉 to under 1,000 worldwide, than…
RT @WHO: #AfricaKicksOutWildPolio During 2000-2010, the number of annual wild poliovirus cases has dropped 📉 to under 1,000 worldwide, than…