Journal Article
                        
                        Wassilak, Steven, Muhammad  Pate, Kahleen   Wannemuehler, Julie  Jenks, Cara  Burns, Paul  Chenoweth, Emmanuel   Abanida, Festus  Adu, Marycelin  Baba, Alex  Gasasira, and   others.  
"Outbreak of type 2 vaccine-derived poliovirus in Nigeria: emergence and widespread circulation in an underimmunized population." Journal of Infectious Diseases 203, no. 7 (2011): 898.