How intense were the clinical symptoms of cowpox as compared to smallpox in humans?
a. More intense
b. Less intense
c. Same intensity
d. We cannot compare them as they are caused by two different viruses
Why does a previous infection with the cowpox virus protect humans against smallpox virus infection and disease
What are the organs attacked by the smallpox virus, and what are the clinical symptoms that can develop after infection
Why does a previous infection with the cowpox virus protect humans against smallpox virus infection and disease