Biology

Diana Norman

15 January, 11:45

The sabin vaccine was a liquid that contained weakened polio viruses. those who have received this vaccine are protected against polio because?

A. the weakened viruses prevent further viral invasion.

B. thee weakened viruses induce an inflammatory response.

C. the weakened viruses promote production of antibodies.

D. the weakened viruses are too weak to cause illness.