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Pacific Coast tick fever is an infection caused by Rickettsia philipii. [2] The disease is spread by the Pacific coast ticks. [2] Symptoms may include an eschar. [2] It is within a group known as spotted fever rickettsiosis together with Rickettsia parkeri rickettsiosis, Rocky Mountain spotted fever, and rickettsialpox. [3]
Rickettsia rickettsii spread by ticks [4] Diagnostic method: Based on symptoms [5] Differential diagnosis: Zika fever, dengue, chikungunya, Rickettsia parkeri rickettsiosis, Pacific Coast tick fever, rickettsialpox [6] [7] Treatment: Doxycycline [8] Prognosis: 0.5% risk of death [6] Frequency < 5,000 cases per year (USA) [6]
Some well-known rickettsial diseases include: Rickettsialpox - caused by Rickettsia akari, this disease is transmitted by mite bites and is generally milder than other rickettsial infections. Rocky Mountain spotted fever - caused by Rickettsia rickettsii, this disease is transmitted by tick bites and is prevalent in the Americas.
Rickettsia is a genus of nonmotile, gram-negative, nonspore-forming, highly pleomorphic bacteria that may occur in the forms of cocci (0.1 μm in diameter), bacilli (1–4 μm long), or threads (up to about 10 μm long).
However, scrub typhus is still considered a rickettsiosis, even though the causative organism has been reclassified from Rickettsia tsutsugamushi to Orientia tsutsugamushi. [ citation needed ] Examples of rickettsioses include typhus , both endemic and epidemic, Rocky Mountain spotted fever , and Rickettsialpox .
Rickettsia parkeri (abbreviated R. parkeri) is a gram-negative intracellular bacterium. The organism is found in the Western Hemisphere and is transmitted via the bite of hard ticks of the genus Amblyomma .
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 ...
Bartonella quintana, originally known as Rochalimaea quintana, [2] and "Rickettsia quintana", [3] is a bacterium transmitted by the human body louse that causes trench fever. [4] This bacterial species caused outbreaks of trench fever affecting 1 million soldiers in Europe during World War I .