During the last three months of gestation, antibodies from the mother are passed to her unborn baby through the placenta.
This type of immunity is termed acquired immunity as a result of the baby has been given antibodies instead of creating them itself.
Antibodies are special proteins the system produces to assist shield the body against bacterium and viruses.
The amount and kind of antibodies passed to the baby depends on the mother’s immunity.
For example, if the mother has had varicella, she’ll have developed immunity against the condition and a few of the varicella antibodies are passed to the baby.
But if the mother hasn’t had varicella, the baby won’t be protected.
Immunity in newborn babies is merely temporary and starts to decrease when the primary few weeks or months.
Breast milk conjointly contains antibodies, which implies that babies WHO are breastfed have acquired immunity for extended.
The thick chromatic milk (colostrum) created for the primary few days following birth is especially wealthy in antibodies.
Premature babies are at higher risk of developing associate degree ill health as a result of their immune systems aren’t as sturdy and that they haven’t had as several antibodies passed to them.
As newborn immunity is merely temporary, it’s necessary to start childhood immunisations once your baby is a pair of months recent. this is applicable to babies WHO are either premature or full-term .
The first protection, given once your baby is a pair of months recent, includes respiratory disease and Hib (haemophilus respiratory illness sort b) as a result of immunity to those conditions decreases the quickest.
Passive immunity to contagious disease, epidemic parotitis and epidemic roseola will last for up to a year, that is why the MMR immunizing agent is given simply when your baby’s initial birthday.