Difficulties in polio eradication.
John
T J
TJ
D005618:Fresh Water / Q000821:virology*; D005838:Genotype; D006801:Humans; D011051:Poliomyelitis / Q000517:prevention & control / Q000635:transmission* / Q000821:virology; D017955:Poliovirus / Q000235:genetics* / Q000472:pathogenicity; D023321:Poliovirus Vaccines / Q000008:administration & dosage / Q000009:adverse effects; D012307:Risk Factors; D012722:Sewage / Q000821:virology*; D014774:Virulence / Q000235:genetics; D014871:Water Microbiology
D023321:Poliovirus Vaccines; D012722:Sewage