[THE PERSISTENCE OF POLIOMYELITIS VIRUS TYPE 1 IN VACCINATED INDIVIDUALS AND IN THEIR ENVIRONMENT].
D030015:Enterovirus C, Human; D006801:Humans; D011044:Poland; D011051:Poliomyelitis; D017955:Poliovirus; D023321:Poliovirus Vaccines; D014611:Vaccination
D023321:Poliovirus Vaccines
POLAND; POLIOVIRUS; POLIOVIRUS VACCINE; VACCINATION
UTRZYMYWANIE SI E WIRUSA POLIOMYELITIS TYP 1 U OS'OB SZCZEPIONYCH I W ICH OTOCZENIU.