EVERYDAY SCIENCE

Detailed explanation-1: -During the last 3 months of pregnancy, antibodies from mothers are passed to their unborn babies through the placenta. This type of immunity is called passive immunity because the baby has been given antibodies rather than making them itself.

Detailed explanation-2: -Passive Immunity. Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. A newborn baby acquires passive immunity from its mother through the placenta.

Detailed explanation-3: -Natural immunity: Immunity that is naturally existing, Natural immunity does not require prior sensitization to an antigen.

Detailed explanation-4: -Naturally acquired passive immunity occurs during pregnancy, in which certain antibodies are passed from the maternal blood into the fetal bloodstream in the form of IgG. Antibodies are transferred from one person to another through natural means such as in prenatal and postnatal relationships between mother and child.

Detailed explanation-5: -Natural Active Immunity An active immunity example is when someone is able to very easily fight off a common cold because they have previously had a common cold and their body has antibodies to the virus that causes the common cold.