Volume 19, Number 10—October 2013
Rickettsia slovaca Infection in Humans, Portugal
|Characteristic||Patient 1||Patient 2||Patient 3|
|Date of illness onset||2010 Oct||2012 Apr||2012 May|
|Type of residence||Rural||Rural||Rural|
|At-risk activity||Field worker||Field worker, contact with domestic animals||Contact with dogs|
|Reported tick bite
|Incubation time, d*†||4||7||NA|
|Eschar on scalp||Yes||Yes||Yes|
|Painful cervical/occipital lymphadenopathy||Yes||No||Yes|
|Antibodies against R. slovaca by IFA‡|
|Sample 1, titer IgM/IgG||Negative||32/64||32/64|
|Sample 2, titer IgM/IgG||32/128||1,024/1,024||ND|
|Culture from eschar||Positive||ND||Contaminated|
|PCR from eschar||Positive||Positive||Positive|
*All patients were treated with doxycycline. NA, not available; ND, not done; IFA, immunofluorescence assay.
†From tick bite to symptom onset.
‡Positive cutoff values, IgM = 32; IgG = 128.
Page created: August 14, 2013
Page updated: September 16, 2013
Page reviewed: September 16, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.