Ask Question
10 March, 02:24

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 viral immune system.

d. all of the above

+4
Answers (1)
  1. 10 March, 02:45
    0
    It's B, ijust read my biology book
Know the Answer?
Not Sure About the Answer?
Find an answer to your 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 ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers