Smallpox is an infectious disease. This disease only appears within humans. This is caused by two different virus variants. It was a very effective and deadly disease until the year of 1979, when it was completely eradicated. It is estimated that in the 20th century, This disease is believed to have emerged in 10,000 BCE.
The spreading of small pox goes through by the breathing in of airborne variola virus. This can be caught via oral, nasal, or pharyngeal mucosa of an infected person. This disease has also been known to be spread through direct contact with bodily fluids from that of the infected to a non- infected person.
The signs for smallpox are very few, however, they are quite noticeable. In the Variola major form of smallpox, there are four types of smallpox. Among them are ordinary, modified, flat, and hemorrhagic. The symptoms emitted from these include a higher fever, and a more extensive rash.
The second form of smallpox is variola sine eruptione. This smallpox tended to appear more in people with a vaccination. A very notable part of it, is that in this smallpox, there is no rash.
Wars used in
The smallpox disease was used as biological warfare in several wars, in different ways. In the French and Indian wars, it is thought that this disease was used as an agent against the French, Indians, and their allies at the Siege of Fort Pitt. It is known however that it was used in the Revolutionary war, and World War II. During the Revolutionary war, it was used as a straight up- weapon, infecting the users foes. During World War II, scientists from the United Kingdom, the United States, and Japan, were known to be researching how to make a biological weapon from the disease.