Vaccinia, or cowpox, was used to eradicate the related smallpox virus. This would make it a(n)
A) subunit vaccine.
B) attenuated vaccine.
C) Dane particle.
D) reservoir.
E) cofactor.

Question

Quizplus · Accepted Answer

Vaccinia, or cowpox, is used as an attenuated vaccine because it is a live virus that is similar enough to smallpox to provide immunity without causing the disease itself.

Vaccinia, or Cowpox, Was Used to Eradicate the Related Smallpox