Question

question 5
vaccines help develop immunity by imitating an infection. what response occurs in the immune system following a vaccine?
select one:
○a. antibodies are created to help an organism fight off similar viral infections later.
○b. toxins are created to fight the infection caused by the virus.
○c. copies of the virus are created to cause an organism to become ill quickly.
○d. antibodies are created to destroy the bacteria that come with most viruses.

Explanation:

Vaccines introduce a harmless form of a pathogen to trigger an immune response. The immune system produces antibodies specific to this pathogen, and also creates memory cells that allow the body to quickly recognize and fight off the actual, harmful version of the pathogen if encountered later. Option b is incorrect because toxins are not produced by the immune system in response to vaccines to fight infection; toxins are harmful substances often made by pathogens. Option c is wrong because vaccines do not create copies of the virus to make the organism ill. Option d is incorrect because vaccines target the specific pathogen (virus in this context), not bacteria associated with viruses.

Answer:

a. Antibodies are created to help an organism fight off similar viral infections later.