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  1. Search, browse and select cities on our interactive allergy map to see allergy levels and pollen count forecasts. + - [ - ] Low (0–2.4) Low-Medium (2.5–4.8) Medium (4.9–7.2) Medium-High (7.3–9.6) High (9.7–12) Leaflet | © OpenStreetMap contributors. Feds Announce New Measures to Monitor, Prevent Bird Flu.

  2. May 1, 2024 · The reemergence of Rocky Mountain spotted fever (RMSF) in western North America is life-threatening to hundreds of people annually. 1,2 When the brown dog tick (Rhipicephalus sanguineus) inoculates Rickettsia rickettsii into human or canine hosts, RMSF can progress in a week to fatality unless early antibiotic treatment is initiated with a ...

    • Janet Foley
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  4. May 7, 2024 · Early history and maps of the California Trail (1826–1850) The exploration of the West by Jedediah Smith. The Great Basin and the Sierra Nevada through which the trail passed were first explored by British and American fur trappers.

  5. May 3, 2024 · Weather during the Civil War. SUMMARY. Weather was influential in shaping events during the American Civil War (1861–1865). For instance, concerns about weather helped determine overall strategy as well as tactics on the battlefield.

  6. May 1, 2024 · Cite this page. Tickborne Diseases. Last Literature Review: August 2023 Last Update: February 2024. Tickborne diseases, including Lyme disease and Rocky Mountain spotted fever, are increasing in incidence and distribution in the United States.

  7. 4 days ago · Bismarck, ND. Get 30 Day Historic Pollen Levels for Dallas, TX (75201). See important allergy and weather information to help you plan ahead.

  8. 6 days ago · Howard Ricketts shows that Rocky Mountain spotted fever is caused by an organism that is intermediate in size between an virus and a bacterium. This organism, Rickettsia, is transmitted by ticks.

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