223k views
5 votes
Vaccines were developed to provide immunity to a viral infection. Which of the following is a likely hypothesis of why the smallpox vaccine is no longer given?

User Ashkru
by
7.7k points

1 Answer

1 vote
People have grown completely immune to smallpox, meaning that the vaccine has done it's job and is no longer needed.
User Adi Tiwari
by
8.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.