1952 Bayonnaise Rocks | |
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| Total costs | N/A |
| Deaths | 31 |
Bayonnaise Rocks (ベヨネース列岩, Beyonēsu-retsugan) is a group of volcanic rocks in the Philippine Sea about 408 kilometres (254 mi) south of Tokyo and 65 kilometres (40 mi) south-southeast of Aogashima, in the south portion of the Izu archipelago, Japan. The rocks were discovered by the French corvette Bayonnaise in 1850, while surveying the islands south of Tokyo Bay.
Source: Wikipedia 1918-1922 Russia typhus epidemic | |
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| Total costs | N/A |
| Deaths | 3000000 |
Epidemic typhus, also known as louse-borne typhus, is a form of typhus so named because the disease often causes epidemics following wars and natural disasters where civil life is disrupted. Epidemic typhus is spread to people through contact with infected body lice, in contrast to endemic typhus which is usually transmitted by fleas.Though typhus has been responsible for millions of deaths throughout history, it is still considered a rare disease that occurs mainly in populations that suffer unhygienic extreme overcrowding. Typhus is most rare in industrialized countries. It occurs primarily in the colder, mountainous regions of central and east Africa, as well as Central and South America. The causative organism is Rickettsia prowazekii, transmitted by the human body louse (Pediculus humanus corporis). Untreated typhus cases have a fatality rate of approximately 40%.Epidemic typhus should not be confused with Murine typhus, which is more endemic to the United States, particularly Southern California and Texas. This form of typhus has similar symptoms, but is caused by Rickettsia typhi. It is carried primarily in rat feces and fleas, as well as other rodents. It is not as deadly as louse-born typhus. It occurs only during the summer and fall, when rodents are active among humans.
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