Ehrlichiosis and anaplasmosis

Johan S. Bakken, J. Stephen Dumler

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Ehrlichiosis and anaplasmosis are tick-borne zoonoses caused by rickettsiae. Characteristic infectious syndromes have been described in multiple mammals, including humans. Patients typically present with acute onset of nonspecific fever, headache, and myalgias 1 to 2 weeks after being exposed to or bitten by a tick. Most patients experience a self-limited illness and recover uneventfully. However, fatal outcomes have been described, and specific antibiotic therapy (typically doxycycline) should be administered to all patients who are clinically symptomatic. The diagnosis requires a high index of suspicion and is frequently made retrospectively.

Original languageEnglish (US)
Pages (from-to)433-451
Number of pages19
JournalInfections in Medicine
Issue number9
StatePublished - Sep 1 2004


  • Anaplasmosis
  • Ehrlichiosis
  • Tick-borne infection

ASJC Scopus subject areas

  • Microbiology (medical)
  • Infectious Diseases


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