smallpox Article

smallpox summary

verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://64.176.36.150/summary/smallpox
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://64.176.36.150/summary/smallpox
Below is the article summary. For the full article, see smallpox.

smallpox, or variola, One of the world’s most dreaded plagues before 1980, when it was declared eradicated. It was known in ancient China, India, and Egypt. It came to the Western Hemisphere with Europeans in the 16th century and devastated the native population, which lacked resistance. An infectious viral disease only of humans, it causes fever and then a rash of variable severity that blisters and dries up, leaving scars. It is not spread easily, but the virus can survive for long periods outside the body (e.g., in bedding). Edward Jenner developed a vaccine from cowpox. The World Health Organization’s eradication project reduced smallpox deaths from two million in 1967 to zero in 1977–80. The virus now exists only in laboratories; in some countries it may be under development for purposes of biological warfare.