MICROANATOMY

Detailed explanation-1: -Naturally acquired active immunity occurs after an infection activates the person’s immune system. For example, non-immunized children who develop measles and recover from the illness, get better because they have made an effective immune response against the measles virus.

Detailed explanation-2: -Active naturally acquired immunity refers to the natural exposure to an infectious agent or other antigen by the body. The body responds by making its own antibodies.

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.