Search results
Results from the WOW.Com Content Network
The history of smallpox extends into pre-history. [1] Genetic evidence suggests that the smallpox virus emerged 3,000 to 4,000 years ago. [ 2 ] Prior to that, similar ancestral viruses circulated, but possibly only in other mammals, and possibly with different symptoms.
Due to the long time spans, the first plague pandemic (6th century – 8th century) and the second plague pandemic (14th century – early 19th century) are shown by individual outbreaks, such as the Plague of Justinian (first pandemic) and the Black Death (second pandemic). Infectious diseases with high prevalence are listed separately ...
Smallpox was an infectious disease caused by variola virus (often called smallpox virus), which belongs to the genus Orthopoxvirus. [7] [11] The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, [10] making smallpox the only human disease to have been eradicated to date.
1924–1925 Minnesota smallpox epidemic; 1947 New York City smallpox outbreak; 1962-1965 rubella epidemic [2] 1976 Philadelphia Legionnaires' disease outbreak; 1976 swine flu outbreak; 1987 Carroll County cryptosporidiosis outbreak; 1990–1991 Philadelphia measles outbreak; 1993 Four Corners hantavirus outbreak; 1992–1993 Jack in the Box E ...
Smallpox vaccine was available in Europe, the United States, and the Spanish Colonies during the last part of the century. [4] [5] The Latin names of this disease are Variola Vera. The words come from various (spotted) or varus (pimple). In England, this disease was first known as the "pox" or the "red plague".
Smallpox was a dangerous disease caused by the variola major virus. The most common type of smallpox, ordinary, historically has devastated populations with a 30% death rate. The smallpox virus is transmittable through bodily fluids and materials contaminated with infected materials.
The worst epidemics and pandemics have ravaged humanity throughout its existence, but which were the deadliest? Some of the worst epidemics and pandemics in history have doomed whole civilizations ...
Iceland in 1707 was a territory of the Kingdom of Denmark with 53,681 people according to one tally of the 1703 census. [2] Epidemic diseases like smallpox did not naturally sustain themselves on the island due to the relatively sparse population, but frequent trade and travel with Denmark presented a vulnerability to cross-Atlantic spread of contagious diseases.