| presence and gradual disappearance of filaria-specific urinary igg4 in babies born to antibody-positive mothers: a 2-year follow-up study. | a total of 14 sri lankan pregnant women, who were anti-brugia pahangi urinary igg4 positive, and their 14 newborn babies were followed up for the urinary antibody for 2 years by enzyme-linked immunosorbent assay. eight babies showed positive igg4 reaction, at least once within 4 months after birth. urinary antibody titers of mothers and their babies measured around the perinatal period showed a significant positive correlation, suggesting that baby's igg4 was transferred from the mother through ... | 2008 | 18502681 |