Outbreak of type 2 vaccine-derived poliovirus in Nigeria: emergence and widespread circulation in an underimmunized population.
Wassilak S, Pate MA, Wannemuehler K, Jenks J, Burns C, Chenoweth P, Abanida EA, Adu F, Baba M, Gasasira A, Iber J, Mkanda P, Williams AJ, Shaw J, Pallansch M, Kew O.
Wassilak S, et al.
J Infect Dis. 2011 Apr 1;203(7):898-909. doi: 10.1093/infdis/jiq140.
J Infect Dis. 2011.
PMID: 21402542
Free PMC article.