Pavlov, Dobromir Nikolov; Van Zyl, Walda B.; Kruger, Marlena C.; Blignaut, Liezl; Grabow, W.O.K.; Ehlers, Marthie Magdaleen
(Elsevier, 2006)
After exposure to the oral poliovirus vaccine (OPV), immunocompetent persons excrete poliovirus (PV) vaccine strains for a limited period. In contrast, immunodeficient individuals remain sometimes chronically infected, and ...