EVERYDAY SCIENCE

Detailed explanation-1: -Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body. Newer vaccines contain the blueprint for producing antigens rather than the antigen itself.

Detailed explanation-2: -Natural immunity is acquired from exposure to the disease organism through infection with the actual disease. Vaccine-induced immunity is acquired through the introduction of a killed or weakened form of the disease organism through vaccination.

Detailed explanation-3: -Inactivated vaccines are another form of vaccine, where the virus is inactivated during the process of making the vaccine. Inactivated vaccines are not strongly influenced by antibodies in the host body, compared to live vaccines.

Detailed explanation-4: -The chemical substance that enhances the immune response in an organism is called antigen.

Detailed explanation-5: -Hepatitis A. Flu (shot only) Polio (shot only) Rabies.