THE RESPONSE OF PREMATURE INFANTS TO INFECTION WITH TYPE 3 ATTENUATED POLIOVIRUS.
D000917:Antibody Formation; D005243:Feces; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D010414:Pennsylvania; D017955:Poliovirus; D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
D011055:Poliovirus Vaccine, Oral; D023321:Poliovirus Vaccines
ANTIBODY FORMATION; FECES; INFANT, NEWBORN; INFANT, PREMATURE; PENNSYLVANIA; POLIOVIRUS VACCINE, ORAL