Tag: Rickettsia

Pathogenesis and Clinical manifestations of Rickettsia rickettsii 5/5 (3)

Pathogenesis and Clinical manifestations of Rickettsia rickettsii

Pathogenesis of Rickettsia rickettsii Human gets infected when infected adult tick inoculates Rickettsia rickettsii into the skin while taking a blood meal. It usually takes 6 hours of attachment and feeding before rickettsiae are transmitted to the host. Infection can also be transmitted occasionally by scratching and rubbing infectious tick feces into the abraded skin. After […]

Laboratory diagnosis, treatment and prevention of Rickettsia rickettsii 5/5 (4)

Laboratory diagnosis, treatment and prevention of Rickettsia rickettsii

Laboratory diagnosis of Rickettsia rickettsii Specimen: Skin biopsies, serum Direct detection method Although Rickettsiae stain poorly with Gram stain, they can be stained with Giemsa or Gimenez stains. Direct detection of R. rickettsii antigen in skin biopsy specimens of the rash from infected patients by direct fluorescent antibody test using the specific anti-rickettsial antibodies is a rapid […]

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