[How many injections of poliomyelitis vaccine are necessary for effective & prolonged immunity].
D006801:Humans; D007267:Injections; D011051:Poliomyelitis / Q000276:immunology*; D023321:Poliovirus Vaccines
D023321:Poliovirus Vaccines
POLIOMYELITIS/immunology
Quante iniezioni di vaccino antipoliomielitico sono necessarie per und effettiva e duratura immunità?