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  2. Rocky Mountain Spotted Fever (RMSF) is a disease caused by an infectious bacterium called Rickettsia rickettsii, which can only survive within its host’s cells. RMSF occurs in North, South, and Central America and is widespread throughout the Midwest, the Pacific Northwest, and the eastern United States, as well as in parts of Canada.

  3. Although there are multiple related Rickettsia species that can be transmitted to people, the most common in dogs and the most severe in people and dogs is Rickettsia rickettsii, the agent of Rocky Mountain spotted fever. Infected dogs serve to increase risk for people and dogs where the vector is the brown dog tick, and in any region, the ...

  4. Jun 1, 2023 · Caused by a bacterium called Rickettsia rickettsii (R. rickettsii), which is transmitted through tick bites, RMSF can be dangerous to dogs. Knowing the risk factors, signs, diagnosis...

  5. RMSF is most often transmitted by the American dog tick in the Eastern, Central and Western United States; by the Rocky Mountain wood tick in the Rocky Mountain states; and by the brown dog tick in the Southwestern United States, along the U.S.-Mexico border. RMSF can be rapidly fatal if not treated within the first 5 days of symptoms.

  6. Rocky Mountain spotted fever is a disease of humans and dogs that is caused by Rickettsia rickettsii. (Rickettsiae are a specialized type of bacteria that live only inside other cells.)

  7. Dec 10, 2020 · Rocky Mountain spotted fever (RMSF) is a tick-borne disease caused by the bacteria Rickettsia rickettsii. In hot, arid climates, including eastern Arizona, Mexico, and South America, it is spread by the brown dog tick ( Rhipicephalus sanguineus ), which feeds on dogs (preferred host) and people.

  8. Dec 19, 2019 · The most common antibiotic used to treat Rocky Mountain spotted fever in dogs is doxycycline. Pet parents administer it orally, as a tablet or capsule, once or twice daily for 21 days. Side effects include nausea and vomiting, although giving the medication with food can minimize these effects.

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