WebMay 7, 2015 · Smallpox is believed to have first infected humans around the time of the earliest agricultural settlements some 12,000 years ago. No surviving evidence of it, … WebMay 8, 2024 · Today, the world celebrates the 40th anniversary of the World Health Assembly’s 1980 declaration that smallpox had been eradicated—the first such success in history. By no means novel, smallpox is the biggest killer in world history, causing an estimated 400 million cumulative deaths over 3,000 years—300 million in the 20th century …

Smallpox - National Institute of Allergy and Infectious …

WebFeb 17, 2011 · The first stages of preparing vaccine © The earliest physical evidence of smallpox is the pustular rash on the mummified body of Pharaoh Ramesses V of Egypt, … WebSmallpox is a dangerous disease caused by a tiny germ called a virus . Smallpox once killed or scarred many people. However, in the late 20th century scientists fought the disease successfully. There have been no … the outsiders book number of pages

Smallpox - WHO

WebJul 20, 1998 · smallpox, also called variola major, acute infectious disease that begins with a high fever, headache, and back pain and then proceeds to an eruption on the skin that leaves the face and limbs covered with cratered pockmarks, or pox. For centuries … immunization, process by which resistance to disease is acquired or induced in … vaccine, suspension of weakened, killed, or fragmented microorganisms or toxins or … pandemic, outbreak of infectious disease that occurs over a wide geographical … cowpox, also called vaccinia, uncommon mildly eruptive disease of animals, first … Wellcome Library, London (CC BY 4.0) Once one of the world’s most dreaded plagues, … WebSmallpox is a dangerous disease caused by a tiny germ called a virus. Smallpox once killed or scarred many people. However, in the late 20th century scientists fought the disease successfully. There have been no … Webzoonotic disease, also called zoonosis, any of a group of diseases that can be transmitted to humans by nonhuman vertebrate animals, such as mammals, birds, reptiles, amphibians, and fish. A large number of domestic and wild animals are sources of zoonotic disease, and there are numerous means of transmission. Public health veterinarians have a critical role … the outsiders book overview