IMMUNOLOGY

Detailed explanation-1: -An example of active immunity is through vaccinations, and passive immunity is through the placenta.

Detailed explanation-2: -The immunity to chickenpox can control every future chance of infection by the same virus. Therefore, the immunity to chickenpox only develops after getting exposed to the virus, and hence it is a type of acquired immunity.

Detailed explanation-3: -Give a few examples of active and passive immunity. Immunization of chickenpox, hepatitis, flu, and polio are some examples of active immunity. A baby receiving antibodies from her mother’s breast milk and injection of antisera are examples of passive immunity.

Detailed explanation-4: -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-5: -Passive immunity occurs when we are protected from a pathogen by immunity gained from someone else.

Detailed explanation-6: -Types of immunity: Active natural: Body produces antibodies in response to exposure to a live pathogen. Active artificial: Body produces antibodies in response to a vaccine. Passive natural: Antibodies are passed from the mom to her baby through the placenta and breastmilk.