Smallpox, cholera, plague, yellow fever, typhus, typhoid and others are a group of infections known as ‘filth diseases.” All were cleared away by improving hygiene and sanitary living conditions.
Those are the kind of conditions that smallpox lived in.
a. Variola minor: The most common form of smallpox. It accounted for more than 90% of cases. The death rate was less than 1% (<1%)
1.Flat type - rare; nearly 100% fatal
2. Hemorrhagic – more common that flat type; nearly 100% fatal
3. Modified – outbreak occurring in those who were vaccinated
Smallpox is a large and heavy virus; it is not readily aerosolized nor does it
spread easily through the air.
(Remember when then President Bush after 911 put that fear of a smallpox attack on the American people ie stadiums, subways)
Dr Campbell was nominated for the Nobel Prize in Medicine in 1919 yet his history has been erased.
against smallpox infection.
That vaccination was created by scraping the gunk off of the bottom of a cow hoof. Making several cuts into the arm of a mother and placing the scum into the open wound.
But you won't hear these stories unless you read the history books from the doctors of those times.