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  2. Rickettsia rickettsii - Wikipedia

    en.wikipedia.org/wiki/Rickettsia_rickettsii

    The more severe symptoms occur later in response to thrombosis (blood clotting) caused by R. rickettsii targeting endothelial cells in vascular tissue. [ 10 ] [ 43 ] One manifestation of this damage is the development of a petechial rash, which in 60% of cases presents within 6 days of initial symptoms.

  3. Rocky Mountain spotted fever - Wikipedia

    en.wikipedia.org/wiki/Rocky_Mountain_spotted_fever

    A female tick can transmit R. rickettsii to her eggs in a process called transovarial transmission. Ticks can also become infected with R. rickettsii while feeding on blood from the host in either the larval or nymphal stage. After the tick develops into the next stage, the R. rickettsii may be transmitted to the second host during the feeding ...

  4. Rickettsia conorii - Wikipedia

    en.wikipedia.org/wiki/Rickettsia_conorii

    Rickettsia conorii is a Gram-negative, obligate intracellular bacterium of the genus Rickettsia that causes human disease called boutonneuse fever, Mediterranean spotted fever, Israeli tick typhus, Astrakhan spotted fever, Kenya tick typhus, Indian tick typhus, or other names that designate the locality of occurrence while having distinct clinical features.

  5. Tick-borne disease - Wikipedia

    en.wikipedia.org/wiki/Tick-borne_disease

    Treatment: Antibiotics are the treatment for relapsing fever, with doxycycline, tetracycline, or erythromycin being the treatment of choice. [32] Typhus Several diseases caused by Rickettsia bacteria (below) Rocky Mountain spotted fever. Organism: Rickettsia rickettsii; Vector: Wood tick (Dermacentor variabilis), D. andersoni; Region (US): East ...

  6. List of dog diseases - Wikipedia

    en.wikipedia.org/wiki/List_of_dog_diseases

    Up to 80 percent of dogs infected will have symptoms, but the mortality rate is only 5 to 8 percent. [5] Infectious canine hepatitis is a sometimes fatal infectious disease of the liver. [6] Canine herpesvirus is an infectious disease that is a common cause of death in puppies less than three weeks old. [7]

  7. Rickettsia parkeri - Wikipedia

    en.wikipedia.org/wiki/Rickettsia_parkeri

    A 2008 study compared 12 R. parkeri cases with 208 Rocky Mountain spotted fever cases caused by R. rickettsii. [7] Although both R. parkeri and R. rickettsii caused fever, rash, myalgia, and headache, R. parkeri caused eschars and R. rickettsii did not. [7] Furthermore, the percentage of patients hospitalized was lower for R. parkeri than for R ...

  8. Rickettsialpox - Wikipedia

    en.wikipedia.org/wiki/Rickettsialpox

    Rickettsialpox is a mite-borne infectious illness caused by bacteria of the genus Rickettsia (Rickettsia akari). [1] Physician Robert Huebner and self-trained entomologist Charles Pomerantz played major roles in identifying the cause of the disease after an outbreak in 1946 in a New York City apartment complex, documented in "The Alerting of Mr. Pomerantz," an article by medical writer Berton ...

  9. Ehrlichiosis (canine) - Wikipedia

    en.wikipedia.org/wiki/Ehrlichiosis_(canine)

    Ehrlichiosis (/ ˌ ɛər l ɪ k i ˈ oʊ s ɪ s /; also known as canine rickettsiosis, canine hemorrhagic fever, canine typhus, tracker dog disease, and tropical canine pancytopenia) is a tick-borne disease of dogs usually caused by the rickettsial agent Ehrlichia canis. Ehrlichia canis is the pathogen of animals.