What is the basis for the modern smallpox vaccine?
a. chickenpox virus
b. cowpox virus
c. rabies virus
d. smallpox virus
e. anthrax
Answer: cowpox virus
What is the basis for the modern smallpox vaccine?
a. chickenpox virus
b. cowpox virus
c. rabies virus
d. smallpox virus
e. anthrax
Answer: cowpox virus
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.