How can passive immunity be achieved?
How can passive immunity be achieved?
The correct options are
A Transfer of preformed antibodies from a healthy to an infected person
C Transfer of antibodies from an immunized donor to an unimmunized recipient
Passive immunity is the transfer of antibody produced by one human or animal to another. Passive immunity provides protection against some infections, but this protection is temporary. The antibodies will degrade during a period of weeks to months, and the recipient will no longer be protected. The most common form of passive immunity is that which an infant receives from its mother. Antibodies are transported across the placenta during the last 1–2 months of pregnancy. Also colostrum contains antibodies which are transferred to the baby while breastfeeding. As a result, a full-term infant will have the same antibodies as its mother. These antibodies will protect the infant from certain diseases for upto a year.
A
Transfer of preformed antibodies from a healthy to an infected person
C
Transfer of antibodies from an immunized donor to an unimmunized recipient
Passive immunity is the transfer of antibody produced by one human or animal to another. Passive immunity provides protection against some infections, but this protection is temporary. The antibodies will degrade during a period of weeks to months, and the recipient will no longer be protected. The most common form of passive immunity is that which an infant receives from its mother. Antibodies are transported across the placenta during the last 1–2 months of pregnancy. Also colostrum contains antibodies which are transferred to the baby while breastfeeding. As a result, a full-term infant will have the same antibodies as its mother. These antibodies will protect the infant from certain diseases for upto a year.
