Categories RT @WHO: #AfricaKicksOutWildPolio During 2000-2010, the number of annual wild poliovirus cases has dropped
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…
