Ask Question
18 September, 17:21

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

+5
Answers (1)
  1. 18 September, 17:27
    0
    It's B, ijust read my biology book
Know the Answer?
Not Sure About the Answer?
Get 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 there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers