Question

Vaccines are given to provide protection against pathogen causing infections. Which of

the following statements best describes how vaccines work?
Group of answer choices

A. Antibodies in the vaccine provide the body with nonspecific immunity to an antigen.

B. Fever and swelling develop which is the first response in killing a pathogen.

C. An inactivated or killed virus stimulates the body to develop specific immunity to that type of virus.

D. Heathy bacteria causes the body to release toxins which will protect the body if later exposed to different type of bacteria.

Answer 1

Answer: 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. Regardless of whether the vaccine is made up of the antigen itself or the blueprint so that the body will produce the antigen, this weakened version will not cause the disease in the person receiving the vaccine, but it will prompt their immune system to respond much as it would have on its first reaction to the actual pathogen.