Difference between revisions of "Southern tick-associated rash illness"

(Differential Diagnosis)
Line 15: Line 15:
*No testing available
*No testing available
*10d doxycycline or amoxicillin
*10 days of [[doxycycline]] or [[amoxicillin]]
*No evidence this is beneficial, but commonly given
*No evidence this is beneficial, but commonly given

Revision as of 20:35, 6 December 2014


  • STARI (Southern tick-associated rash illness)
  • Transmitted by lone star tick (Amblyomma americanum)
    • female tick has single white dot or "lone star" on its back, aggressive feeders
  • May be caused by spirochete Borrelia lonestari
  • Midwest and Mid-Atlantic states

Clinical Features

  • Resembles Lyme disease in rash, constitutional symptoms, time course
  • May have delayed anaphylaxis (3-6h) to red meat from IgE Ab to glycoprotein in meat of mammals, w/ negative allergy skin test

Differential Diagnosis

Tick Borne Illnesses


  • No testing available



  • Home

See Also

External Links


  1. Hall J, Khan Sajid Small Bugs with Big Bites, EM Resident Oct/Nov 2014 Vol 4:5; 10
  2. http://www.cdc.gov/stari/symptoms/index.html