[NATURAL ANTI-ECHO 4, ANTI-ECHO 6 AND ANTI-ECHO 9 IMMUNITY IN THE PUERPENIUM AND IN NEWBORN INFANTS].
D029822:Enterovirus B, Human; D004769:Enterovirus Infections; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D049590:Postpartum Period; D011247:Pregnancy
ECHO VIRUSES; ENTEROVIRUS INFECTIONS; INFANT, NEWBORN; PREGNANCY; PUERPERIUM
IMMUNIT'A NATURALE ANTI-ECHO 4, ANTI-ECHO 6 E ANTI-ECHO 9 IN PUERPERE E NEONATI.