Refer to the figure above and then answer the questions that follow.
-Some vaccines contain live bacteria. Before they are injected into the body, these bacteria:
A) must be killed by heating.
B) are weakened so they do not cause disease.
C) have all their antigens removed.
D) are mixed with antibiotics.

Question

Refer to the figure above and then answer the questions that follow.
-Some vaccines contain live bacteria. Before they are injected into the body, these bacteria:
A) must be killed by heating. 
B) are weakened so they do not cause disease. 
C) have all their antigens removed. 
D) are mixed with antibiotics.

Quizplus · Accepted Answer

Live bacterial vaccines are typically weakened (attenuated) so they can stimulate an immune response without causing the disease they are meant to protect against.

Refer to the Figure Above and Then Answer the Questions