A vaccine:

A. can be harmful because it contains pathogens such as viruses.
B. contains a changed pathogen, so the pathogen is no longer harmful.
C. provokes a response from the immune system.
D. all of the above

Question

A vaccine:

A. can be harmful because it contains pathogens such as viruses.
B. contains a changed pathogen, so the pathogen is no longer harmful.
C. provokes a response from the immune system.
D. all of the above

Daryn · Answer

It's B, ijust read my biology book

Anonymous · Answer

Vaccines provide immunity by stimulating the immune system with components derived from pathogens that are altered to prevent disease. While some options about vaccines contain misleading information, the correct choice emphasizes their role in immune response. Overall, the correct answer to the question is option C. 
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A vaccine: A. can be harmful because it contains pathogens such as viruses. B. contains a changed pathogen, so the pathogen is no longer harmful. C. provokes a response from the immune system. D. all of the above

Answer (2)

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A vaccine:

A. can be harmful because it contains pathogens such as viruses.
B. contains a changed pathogen, so the pathogen is no longer harmful.
C. provokes a response from the immune system.
D. all of the above