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1. www.hopkinsguides.com › all › Rickettsia_rickettsiiRickettsia rickettsii (Rocky Mountain Spotted Fever)

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   May 10, 2024 · Obligate intracellular, small Gram-negative coccobacillus [ Fig 1 ], member of Rickettsiaceae family, the agent of Rocky Mountain spotted fever (RMSF). Tick-transmitted, it occurs most commonly in late spring to early fall but may occur year-round in warmer states (e.g., the Southeastern U.S.).

2. www.cdc.gov › rocky-mountain-spotted-fever › hcpClinical Signs and Symptoms | Rocky Mountain Spotted Fever ...

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   May 15, 2024 · What to know. Rocky Mountain spotted fever (RMSF), is the most severe rickettsiosis in the United States. RMSF is a rapidly progressive disease and without early administration of doxycycline can be fatal within days. Signs and symptoms may change as the illness progresses.

3. microbiologyjournal.org › role-of-rickettsialRole of Rickettsial Outer Membrane Protein A in the ...

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   5 days ago · According to the literature, OmpA of spotted fever group rickettsia plays a crucial role as an adhesin and invasin that directly interacts with the surface of mammalian host cells to mediate bacterial localization in host cells.

4. www.cell.com › heliyon › fulltextCase Report: Multiple Organ Failure Caused by Japanese ...

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   1 day ago · Introduction. Japanese spotted fever (JSF) is a tick-borne infectious disease caused by the Rickettsia japonica, the classic triad of JSF symptoms are high fever, erythema, and eschar formation. JSF is predominantly endemic in Asia, most of which occur in Korea, the Philippines and Thailand. The typical signs and symptoms of JSF and scrub ...

5. healthdor.com › article › causes-of-splenomegaly-inCauses of Splenomegaly in Rickettsial Infections

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   22 hours ago · This article explores the connection between Rickettsial infections and splenomegaly, including common causes, symptoms, diagnosis, and treatment options.

6. www.cdc.gov › other-spotted-feverAbout Other Spotted Fever Rickettsioses | Other Spotted Fever ...

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   May 14, 2024 · Spotted fever rickettsioses are a group of diseases caused by closely related bacteria. These bacteria are spread to people through the bite of infected ticks and mites. Symptoms can include a dark scab (eschar) at the site of the tick or mite bite, fever, headache, rash, and muscle aches.

7. People also ask

   Where can I find Rickettsia rickettsii (Rocky Mountain spotted fever) answers?

   • There's more to see -- the rest of this topic is available only to subscribers. Rickettsia rickettsii (Rocky Mountain Spotted Fever) answers are found in the Johns Hopkins ABX Guide powered by Unbound Medicine. Available for iPhone, iPad, Android, and Web.

   Rickettsia rickettsii | Johns Hopkins ABX Guide

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   Does R typhi cross-react with R rickettsia?

   • R. typhi antigens frequently cross-react with those of R. prowazekii and R. felis, and less often with R. rickettsii. IHC can be used to detect infection with typhus group Rickettsia (including R. prowazekii and R. typhi) in formalin-fixed tissue samples.

   Clinical Overview of Murine Typhus | Typhus Fevers | CDC

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   Does rickettsii cause elevated hepatic transaminases?

   • Elevated levels of hepatic transaminases may be present. These tests may not appear abnormal in early stages of illness. R. rickettsii infects the endothelial cells that line the blood vessels causing vasculitis. As infection continues, localized bleeding or clotting in the brain or other organs may occur.

   Rocky Mountain Spotted Fever (RMSF) | CDC - Centers for Disease Cont…

   www.cdc.gov/rocky-mountain-spotted-fever/hcp/signs-symptoms/index.html

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8. www.cdc.gov › typhus › hcpClinical Overview of Murine Typhus | Typhus Fevers | CDC

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   May 15, 2024 · Murine typhus is a flea-borne illness caused by the bacterium Rickettsia typhi. Murine typhus occurs worldwide, primarily in tropical and subtropical climates where rats (the primary animal reservoir) and rat fleas are present.