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Jan 17, 2018 · The Klondike Gold Rush was a mass influx of prospecting migrants to the Canadian Yukon Territory and Alaska after gold was discovered in those regions in 1896.
Nov 7, 2023 · The United States of America (USA), for short America or United States (U.S.) is the third or the fourth-largest country in the world. It is a constitutional based republic located in North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Mexico and Canada. There are 50 states and the District of Columbia.
21 hours ago · National allergy forecast for USA cities. How Common Drugs, Lotions Can Worsen Sunlight's Harm to Your Skin. SATURDAY, Aug. 10, 2024 (HealthDay News) -- Most folks know that a good sunscreen can guard against the sun's harmful rays, but many might not realize that some medications and creams can undo some of that protection.
Mar 25, 2024 · Rocky Mountain spotted fever (RMSF) is a bacterial illness caused by a bite from an infected tick.Symptoms include high fever and widespread rash. In the United States, there are 4,000–6,000 reports of tick-borne spotted fevers, including RMSF, each year.
Jul 17, 2023 · Rocky Mountain spotted fever (RMSF) is an acute febrile tick-borne illness caused by Rickettsia rickettsii. It is the most severe and most common of the rickettsial infections in North America.[1][2][3]
Rocky Mountain spotted fever (RMSF), or "black measles," fatal in eighty percent of adult cases, plagued early-day settlers in the Bitterroot Valley. In 1906 Howard Ricketts identified ticks as carriers of this disease. State efforts to control the insects were only partially successful, and in 1921 the U.S. Public Health Service agreed to fund a vaccine development program. An ...
Aug 4, 2015 · The Panama Canal was first developed following the failure of a French construction team in the 1880s, when the United States commenced building a canal across a 50-mile stretch of the narrow ...
