Tsutsugamushi fever

Last Updated: 2023-07-07

Author(s): Anzengruber F., Navarini A.

ICD11: 1C30.3

Kedami fever, Japanese river fever, river fever, scrub typhus.

Rickettsiosis, which is caused by R. tsutsugamushi.

Specialy found in Asia, Pacific Islands and Australia.

  • Pathogen
    • Rickettsia tsutsugamushi.
  • R. tsutsugamuschi is transmitted by mites.

  • Localisations
  • Axillae, trunk, Leisen, thigh.
  • The primary lesion (eschar) is characterised by an erythematous papulovesicle, which may ulcerate.
  • Locoregional lymph node adenopathy.
  • Maculopapular exanthema (from day 6-10 of illness), enanthema.

  • Travel history.
  • Clinical.
  • Lice infestation.
  • BB (leukopenia, eosinophilia, thrombocytopenia, ESR ↑), liver and kidney values (transaminases↑).
  • Electrolytes.
  • From the 2nd week of illness. Weil-Felix reaction (agglutination test).
  • From the 3rd week of illness complement fixation reaction.
  • From the 3rd week of illness indirect immunofluorescence test.

  • Atypical pneumonias.
  • Disseminated intravascular coagulation.
  • Myocarditis.

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