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Jun 21, 2017 · At 28,251 feet, K2 is the world's second highest peak after Mount Everest. Japan's highest mountain, Mount Fuji draws more than 200,000 annual climbers. This is a classic view of Tanzania's Mount ...
Mar 31, 2017 · Rocky Mountain spotted fever, a tick-borne zoonosis caused by Rickettsia rickettsii, is among the most lethal of all infectious diseases in the Americas. In Mexico, the disease was first described during the early 1940s by scientists who carefully documented specific environmental determinants responsible for devastating outbreaks in several communities in the states of Sinaloa, Sonora ...
- Gerardo Álvarez-Hernández, Jesús Felipe González Roldán, Néstor Saúl Hernández Milan, R Ryan Lash, C...
- 2017
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Jul 8, 2014 · Rocky Mountain spotted fever is a tickborne disease first recognized in 1896 in the Snake River Valley of Idaho. It was originally called “black measles” because of the look of its rash in the late stages of the illness, when the skin turns black. It was a dreaded, often fatal disease, affecting hundreds of people in Idaho.
- Overview
- Great Dividing Range
- Ethiopian Highlands
- Andes
- Himalayas
- Atlas Mountains
- Alps
- Rocky Mountains
Like hiking? Then come and explore the plants and animals of seven of the world’s major mountain ranges! From the towering Himalayas to the austere Atlas Mountains, mountain ecosystems are chock full of interesting organisms. Often considered biological hotspots, many of these regions feature life forms with amazing adaptations to enable survival i...
A hike along Australia’s Great Dividing Range would reveal a series of plateaus and low mountain ranges roughly paralleling the coasts of Queensland, New South Wales, and Victoria. The mountain range extends some 2,300 miles (3,700 km) from the Cape York Peninsula, Queensland, to the Grampians in Victoria Bass Strait between Australia and Tasmania....
Although Ethiopia’s complex relief defies easy classification, of the five topographic regions in the country only two (the Western Highlands and the Eastern Highlands) might be classified as mountain ecosystems. The most spectacular portion is the North Central massifs in the Western Highlands; these form the roof of Ethiopia, the highest being Mo...
Travelers to the Andes wouldn’t find a single line of formidable peaks but rather a succession of parallel and transverse mountain ranges, or cordilleras, mixed with intervening plateaus and depressions. Found along the whole western edge of South America, they stretch from Tierra del Fuego in the south all the way to the continent’s northernmost c...
For thousands of years the Himalayas have held a profound significance for the peoples of South Asia, as their literature, mythologies, and religions reflect. Since ancient times the vast glaciated heights have attracted the attention of the pilgrim mountaineers of India, who coined the Sanskrit name Himalaya—from hima (“snow”) and alaya (“abode”)—...
The Atlas system is a series of mountain ranges in northwestern Africa that run generally southwest to northeast across Morocco, Algeria, and Tunisia. They extend for more than 1,200 miles (2,000 kilometers) from the Moroccan port of Agadir in the southwest to the Tunisian capital of Tunis in the northeast. Mount Toubkal at 13,665 feet (4,165 meter...
Some 750 miles (1,200 kilometers) long and more than 125 miles (201 kilometers) wide at their broadest point between Garmisch-Partenkirchen, Germany, and Verona, Italy, the Alps are the most prominent physiographic region in Western Europe. Mont Blanc, at 15,771 feet (4,807 meters), is the highest peak in the Alps. Other tall peaks in the Alps incl...
The Rocky Mountains are a massive cordillera made up of more than 100 separate mountain ranges stretching from Alberta and British Columbia to New Mexico. The spectacular vistas of the Rockies, such as St. Mary’s Lake in Montana’s Glacier National Park (see photo), have inspired countless mountain climbers, explorers, and even songwriters; John Den...
Nov 2, 2020 · INTRODUCTION. Rocky Mountain spotted fever (RMSF) is a severe and potentially fatal tick-borne disease caused by infection with Rickettsia rickettsii, which is transmitted by several species of ticks of the genus Dermacentor (Dermacentor variabilis and Dermacentor andersoni), Rhipicephalus (Rhipicephalus sanguineus), and Amblyomma (Amblyomma cajennense, Amblyomma aureolatum, Amblyomma imitator ...
- Diego I. Álvarez-López, Estefanía Ochoa-Mora, Kristen Nichols Heitman, Alison M. Binder, Gerardo Álv...
- 10.4269/ajtmh.20-0854
- 2021
- Am J Trop Med Hyg. 2021 Jan; 104(1): 190-197.
The term mountain fever is apparently a catch-all term referred to in many western histories. One histori- cal writer, George Stewart, speaks of this condition as "that vague disease called 'mountain fever,' which seems to have meant any fever you had when you were in the mountains."l Additionally, Dr. Ralph T. Richards, in his
Rocky Mountain spotted fever (or "black measles" because of its characteristic rash) was recognized in the early 1800s, and in the last 10 years of the 1800s (1890–1900) it became very common, especially in the Bitterroot Valley of Montana. The disease was originally noted to be concentrated on the west-side of the Bitterroot river. [31]
- 2 to 14 days after infection
