They point to the smallpox vaccine as being the gold standard example of a vaccine that actually eliminated a virus from the face of the earth, one that had a 30% mortality rate and killed more people than all other viruses combined over the centuries, 300 million.
They point to the smallpox vaccine as being the gold standard example of a vaccine that actually eliminated a virus from the face of the earth, one that had a 30% mortality rate and killed more people than all other viruses combined over the centuries, 300 million.
They point to the smallpox vaccine as being the gold standard example of a vaccine that actually eliminated a virus from the face of the earth, one that had a 30% mortality rate and killed more people than all other viruses combined over the centuries, 300 million.