Pseudotyphus of California



Pseudotyphus of California is a rare, flea-borne Rickettsial disease caused by a Rickettsia felis infection. Patients can be asymptomatic or can present with unspecific symptoms (such as fever, headache, generalized maculopapular rash, myalgia, arthralgia and, ocasionally, eschar. lymphadenopathy, nausea, vomiting, loss of appetite and abdominal pain. Rarely, serious manifestations may occur and include neurological dysfunction (photophobia, hearing loss, and signs of meningitis) and pulmonary compromise.

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Medical Term Other Names Description
Photophobia Extreme sensitivity of the eyes to light, Photodysphoria, Light hypersensitivity [more] Excessive sensitivity to light with the sensation of discomfort or pain in the eyes due to exposure to bright light.
Nuchal rigidity Meningism Resistnace of the extensor muscles of the neck to being bent forwards (i.e., impaired neck flexion) as a result of muscle spasm of the extensor muscles of the neck. Nuchal rigidity is not a fixed rigidity. Nuchal rigidity has been used as a bedside test for meningism, although its sensitivity for this purpose has been debated.
Fever Pyrexia, Hyperthermia Elevated body temperature due to failed thermoregulation.
Vomiting Emesis, Throwing up Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.
Hearing impairment Congenital deafness, Hypoacusis, Deafness, Hearing defect, Hearing loss, Congenital hearing loss [more] A decreased magnitude of the sensory perception of sound.
Skin rash Rash, Exanthem A red eruption of the skin.
Myalgia Muscle pain, Muscle ache Pain in muscle.
Lymphadenopathy Lymph node hyperplasia, Swollen lymph nodes Enlargment (swelling) of a lymph node.
Nausea A sensation of unease in the stomach together with an urge to vomit.
Headache Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve.
Abdominal pain Gastro pain, Gastrointestinal pain, Stomach pain, Abdominal discomfort [more] An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) and perceived to originate in the abdomen.
Pain An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.
Arthralgia Joint pain Joint pain.

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