> In 1978, an accident in a research laboratory led to the death of one person from the disease.
How would this happen when all adults in 1978 were vaccinated for small pox??? I thought the vaccine worked?
> In 1978, an accident in a research laboratory led to the death of one person from the disease.
How would this happen when all adults in 1978 were vaccinated for small pox??? I thought the vaccine worked?