maternal antibody


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maternal antibody

an antibody transmitted from mother to fetus via the placenta. Such antibodies can provide immunity for the fetus and the newborn for up to 6 months after birth. They may also cause hemolytic anemia in newborns in cases of Rh or ABO blood group incompatibility between mother and child.

maternal antibody

An antibody produced by the mother and transferred to the fetus in utero or during breastfeeding.
See also: antibody
References in periodicals archive ?
Optimal timing is between 27 and 36 weeks gestation to maximize the maternal antibody response and passive antibody transfer to the infant.
In the control group, average maternal antibody levels were as high as 8 of HI antibody titer at hatch and thereafter decreased quickly.
The maximum increase has occurred at 20-30th days of the disease, but antibody increase has not happened in infants younger than 4 months of age who had high maternal antibody titers (27).
Laboratory criteria for diagnosis of CRS were: demonstration of rubella-specific IgM antibody in cord blood, or demonstration of rubella-specific IgM antibody in infant blood at 8th wk of age, or infant rubella antibody level persisting at a higher level and for a longer period than expected from passive transfer of maternal antibody (i.
This variable rate of maternal antibody decline makes the timing of vaccine administration difficult.
Researchers there are targeting two opposing forces affecting neonate health: the need for effective passive transfer of maternal antibodies and the maternal antibody interference that hinders the newborn's ability to develop vaccine-based immunity to common pathogens.
A major factor protecting infants from developing disseminated herpes is the presence of maternal antibody,[15] but acyclovir may diminish antibody response to HSV.
This immune reaction can trigger a maternal antibody response in subsequent RhD-positive pregnancies, causing the breakdown of fetal red blood cells.
In our study titre of maternal antibody in ABO HDFN was positively correlated with grades of DAT, risk related to peak bilirubin levels, severity of disease and intensity of treatment and was negatively correlated with cord blood haemoglobin levels.
Maternal antibody transferred to the young infant has an antibody half-life that provides adequate protection during the first 2 months of life, when the infant is especially vulnerable to pertussis infection.
Antibody titers of chicks in unvaccinated controls Group E: On day 07, a total of 10 chicks had maternal antibody titer of 1: 2 each; 07 chicks a titer of 1: 4 and of 03 chicks each indicated a titer of 1: 8 H9N2 virus.

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