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The Early Evolution of Oral Poliovirus Vaccine Is Shaped by Strong Positive Selection and Tight Transmission Bottlenecks - ScienceDirect
WHO urges government to ensure that stopping Circulating Vaccine Derived Polio Virus (cVDPV) remains an urgent priority for the National Polio programme | WHO | Regional Office for Africa
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Global wild poliovirus (WPV) and circulating vaccine-derived poliovirus... | Download Scientific Diagram
Avian Flu Diary: CDC: Polioviruses Detected In NY State Meet WHO Criteria For Circulating Vaccine-Derived Poliovirus (cVDPV)
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