Human granulocytic ehrlichiosis as a common cause of tick-associated fever in Southeast Sweden: Report from a prospective clinical study
Between May and December 1998, tick-associated febrile illness was prospectively studied in Southeast Sweden in order to assess the occurrence of human granulocytic ehrlichiosis (HGE). Inclusion criteria were fever (greater than or equal to 38.0degreesC), with or without headache, myalgia or arthralgia in patients with an observed tick bite or tick exposure within 1 month prior to onset of symptom