SmallPox is a (now eradicated) disease, that spread very easily. It was believed to have first made an appearance in humankind around 10,000 BC. The disease supposedly killed 400,000 Europeans in the late 18th century, including 5 rulers.
SmallPox had two variants, Variola Major and Variola Minor, also known as V major and V minor. V major was more common, and severe. It killed around 30-35% of the people it infected. V minor was less common, and killed only 1% of people it infected.
V major often left its survivors with scars, on the face, arms, and legs. Some people went blind, from corneal ulceration. Sometimes there were limb deformities, from arthritis and osteomyelitis, but this was less common, being seen in 2-5% of cases.
The last case of SmallPox in the United States was in 1949, after a worldwide vaccination. The last naturally occurring case in the world was in Somalia in 1977.
SmallPox is spread by Saliva, Blood products, coughing, sneezing, and physical contact.
A person, after being exposed to the virus, now has about 7-17 days before they are contagious. The first symptoms of the virus include: Fever, possible vomiting, aches in the head and body, and Malaise. The fever is 101-104 degrees Fahrenheit, and in this fase of the disease people are too sick to work or go to school. In fase three, the person will get a rash, along with a few red spots in the mouth and on the tongue. These spots develop into sores and break open, and spreads much of SmallPox in the throat and mouth. This is when someone is the most contagious.
Around the time the sores in the mouth dissapear, a rash covers the skin. Starting on the face, then spreading to the arms, legs, and torso. The rash usually takes 24 hours to spread across the whole body. By the third day the rash has developed into small raised bumps. By the fourth day the bumps will fill with a thick, opaque liquid, with a depression in the center, making the bumps look sort of like doughnuts, this is a very distinct trait in the disease. This stage usually lasts four days.
The bumps soon become pustules. Pustules are hard and raised, people say it's like BB pellets imbedded in the skin. This lasts for about five days.
The pustules then form a crust and start to scab over. By the end of the second week after the rash forms, most pustules are scabbed over. This stage also lasts about five days.
The scabs start to fall off, this fase lasts six days, and the person is still contagious until all scabs have fallen off. After scabs fall off they leave marks on the skin, some being scars. After the scabs are gone, the person is no longer contagious.
SmallPox no longer appears naturally in the world, there was a worldwide vaccination in 1979. SmallPox killed an estimated 300-500 million deaths in the 20th century.