ANATOMY

Detailed explanation-1: -Breast milk also contains antibodies, which means that babies who are breastfed have passive immunity for longer. The thick yellowish milk (colostrum) produced for the first few days following birth is particularly rich in antibodies.

Detailed explanation-2: -Breastfeeding provides passive and likely long-lasting active immunity.

Detailed explanation-3: -For example, passive immunity occurs when a baby receives a mother’s antibodies through the placenta or breast milk. It can also occur when a person receives an injection of antibodies to protect against the effects of a toxin such as snake venom.

Detailed explanation-4: -Passive immunity can occur naturally, such as when an infant receives a mother’s antibodies through the placenta or breast milk, or artificially, such as when a person receives antibodies in the form of an injection (gamma globulin injection).

Detailed explanation-5: -Varicella-Zoster and hepatitis B gammaglobulin (IgG) preparations are examples of passive immunity which have considerable applications to the occupational health situation.