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.
Source: Wikipedia 1941 Huaraz avalanche | |
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| Total costs | N/A |
| Deaths | 6000 |
Huaraz ([waˈɾas]) (from Quechua: Waraq or Waras, 'dawn'), founded as San Sebastián de Huaraz, is a city in Peru. It is the capital of the Ancash Region (State of Ancash) and the seat of government of Huaraz Province. The urban area's population is distributed over the districts of Huaraz and Independencia. The city is located in the middle of the Callejon de Huaylas Valley and on the right side of the river Santa. The city has an elevation of approximately 3050 metres above sea level. The built-up area covers 8 km2 and has a population of 120,000 inhabitants, making it the second largest city in the central Peruvian Andes after the city of Huancayo. It is the 22nd largest city in Peru. Huaraz is the seat of the province's Roman Catholic Bishop and the site of the cathedral. Huaraz is the main financial and trade center of the Callejón de Huaylas and the main tourist destination of Ancash region. Moreover, is one of the biggest towns in the Peruvian Andes. Huaraz is the main destinations for winter sports and adventure. Many visitors from around the world come to the city for practicing sports as climbing, hiking, mountain biking and snowboarding, and also to visit the glaciers and mountains of the Cordillera Blanca, mainly Mount Huascarán, which is considered the tallest mountain in tropics, all of them located in Huascarán National Park which UNESCO declared a nature world heritage site. The city was founded before the Inca Empire when humans settled around the valley of the Santa River and Qillqay. Its Spanish occupation occurred in 1574 as a Spanish-indigenous reducción. During the wars for the independence of Peru, the whole city supported the Liberating Army with food and guns, earning the city the title of 'Noble and Generous City' granted by Simón Bolívar. In 1970, 95% of the city was destroyed by an earthquake that damaged much of Ancash Region. 25,000 people died. The city received much foreign assistance from many countries. For this reason the city was named a capital of International Friendship. The main economic activities in the city are farming and tourism. Since Huaraz has tourist infrastructure supporting the Ancash Highlands, the city is the main point of arrival for practitioners of adventure sports and mountaineering. Along with the snowy peaks of the Cordillera Blanca, one can visit archaeological sites like Chavín de Huantar and the eastern highlands of Ancash, known as Conchucos.
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