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4. 11. 2011


Diseminovaná lymeská borrelióza

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Borrelie a Ehrlichie v ČR

 nové, spolupráce s odborníkem na Bartonelly v ČR, dr.Melterem

Volume 18, Number 1—January 2012


Bartonella quintana Transmission from Mite to Family with High Socioeconomic Status


Suggested citation for this article


To the Editor: Urban trench fever caused by Bartonella quintana has been reported in persons who abuse alcohol and in homeless persons in large cities worldwide. Symptoms vary from asymptomatic intermittent bacteremia to serious complications (1). Pediculus humanus lice, the known vector of the infection, are not always identified, which raises the possibility that other vectors might also be involved (2). We report on an outbreak of B. quintanainfection among a young family of high socioeconomic status and their visiting relatives.

The family resides in a regional city (population 104,000) in northern Czech Republic in an old, renovated apartment located on the top floor, just under the roof. In the summer of 2007, hundreds of ectoparasitic mites migrated from a hole in the roof and settled on the inner side of a permanently open window before infesting family members. Two weeks later (day 1 of symptom onset), a papular rash and pruritic vesicular lesions were noted by the parents on the body and legs of their 2 children, a 1-year-old girl and a 3-year-old boy. On day 3, the girl’s body temperature rose to 38.0°C, and the boy’s temperature rose to 39.5°C. The rash resolved in ≈10 days in both children. Vesicular lesions on the girl’s buccal mucosal membrane resolved in 5 days. Excoriated areas resulting from spontaneous rupture of lesions or scratching were still visible on day 14.

On day 4, a fever (temperature, 38.5°C) and intense tibialgia, which persisted for 5 days, developed in the 33-year-old father of the infected children. On day 5, a vesicular rash, which resolved in 10 days, developed in the 33-year-old mother. The children’s grandfather and both grandmothers also showed symptoms of infection within ≈14 days after having spent >1 days or nights in the infected family’s household (Table). In addition, the regional epidemiologist who was involved in the investigation showed development of a severe infection 16 days after exposure to implicated mites that escaped from a collection tube (Table). Recurrent fevers of decreasing intensity, followed by remissions at 1-week intervals, were observed in all patients for up to 3 months.




Seven mites, which were collected by the father on day 6 after symptom onset, were identified as engorged and nonengorged members of the genus Dermanyssus. After treatment with ethanol, the mites were investigated by culture and DNA analysis. DNA fragments specific for Bartonella spp. (i.e., a 185-bp [3] and a 397-bp [4,5] fragment of the 16S rRNA gene) were amplified; the sequence of the 397-bp fragment was 100% similar to the htrA sequence of the B. quintana strain Toulouse (Table). Results were negative for PCRs with primers for 16S rDNA of Anaplasma phagocytophilum (6) and primers for ospA ofBorrelia burgdorferi (7). Only Staphylococcus cohnii subsp. urealyticus, as part of human or animal commensal flora, was detected on blood agar plates that were cultured for 30 days in a microaerophilic atmosphere.

Patient samples were analyzed by using the specific 16S rRNA primers; the Bartonella-specific amplicon was found only in a sample that was collected on day 4 from the father. Amplification of the htrA gene fragment of identical size and with identical sequences also confirmed the presence of DNA specific for B. quintana in the father’s sample. Hemocultures were not performed at symptom onset, but results for patient serum samples cultured under the same conditions as the homogenized parasites remained negative. Significant titers of IgG against B. quintana and B. henselae or IgG seroconversion in paired serum samples were observed for all patients except the grandfather (Table).

Oral clarithromycin and doxycycline were administered to the children and adults, respectively, for 10 days. The apartment was repeatedly treated with insecticide, and the hole in the roof was repaired, leading to eradication of the mites. The few dead and dry mites that were available for additional parasitologic analysis were mounted in Swan mounting medium (information about the medium is available from the authors), but no characteristics allowing differentiation between species of the genus Dermanyssus were recognized during examination by light microscopy. Failed attempts were made to trap pigeons that had lived on the roof of the apartment or in the same city; however, samples from trapped synanthropic pigeons from the north (n = 20) and central (n = 33) part of the country were negative for Bartonella spp. by the culture and amplification methods described above. Recurrent fever reported by adult patients resolved in 3 months, and all patients made a full clinical recovery. Laboratory findings for the patients were followed for 6 months after symptom onset (Table).

The fact that the suspected vector was a hematophagous mite (Dermanyssus sp.), a parasite of synanthropic pigeons and a suspected vector of other bacterial pathogens (8,9), and that the 16S rRNA Bartonella spp. gene was detected in mites (Steatonyssus sp. from the superfamily Dermanyssoidea) (10) remains a challenge for additional study. Pigeons probably played the role of accidental host in this outbreak, but the source of the infection remains unclear.

Oto MelterComments to Author , Mardjan Arvand, Jiří Votýpka, and Dagmar Hulínská
Author affiliations: Charles University, Prague, Czech Republic (O. Melter)Zentrum für Gesundheitsschutz, Dillenburg, Germany (M. Arvand)National Institute of Public Health, Prague (J. Votýpka, D. Hulínská)


We thank V. Rupeš for parasitologic analysis, A. Valkoun for serologic analysis of specific antibodies to Rickettsia and Coxiella spp., D. Kafková for collection of patient data, and E. Kodytková for manuscript review.


  1. Drancourt  MMainardi  JLBrouqui  PVandenesch  FCarta  ALehnert  F,Bartonella (Rochalimaea) quintana endocarditis in three homeless men. N Engl J Med.1995;332:41923DOIExternal Web Site IconPubMedExternal Web Site Icon
  2. Comer  JAPaddock  CDChilds  JEUrban zoonoses caused by Bartonella, Coxiella, Ehrlichia, and Rickettsia species. Vector Borne Zoonotic Dis2001;1:91118DOIExternal Web Site IconPubMedExternal Web Site Icon
  3. Breitschwerdt  EBHegarty  BCHancock  SISequential evaluation of dogs naturally infected with Ehrlichia canis, Ehrlichia chaffeensis, Ehrlichia equi, Ehrlichia ewingii, or Bartonella vinsonii. J Clin Microbiol1998;36:264551.PubMedExternal Web Site Icon
  4. Anderson  BSims  KRegnery  RRobinson  LSchmidt  MJGoral  SDetection ofRochalimaea henselae DNA in specimens from cat scratch disease patients by PCR. J Clin Microbiol1994;32:9428.PubMedExternal Web Site Icon
  5. Arvand  MSchäd  SGIsolation of Bartonella henselae DNA from the peripheral blood of a patient with cat scratch disease up to 4 months after the cat scratch injury. J Clin Microbiol2006;44:228890DOIExternal Web Site IconPubMedExternal Web Site Icon
  6. Massung  RFSlater  KGComparison of PCR assays for detection of the agent of human granulocytic ehrlichiosis, Anaplasma phagocytophilum. J Clin Microbiol.2003;41:71722DOIExternal Web Site IconPubMedExternal Web Site Icon
  7. Hulinska  DVotypka  JPlch  JVlcek  EValešová  MBojar  MMolecular and microscopical evidence of Ehrlichia spp. and Borrelia burgdorferi sensu lato in patients, animals and ticks in the Czech Republic. New Microbiol.2002;25:43748.PubMedExternal Web Site Icon
  8. Valiente Moro  CDe Luna  CJTod  AGuy  JHSparagano  OAEZenner  LThe poultry red mite (Dermanyssus gallinae): a potential vector of pathogenic agents.Exp Appl Acarol2009;48:93104DOIExternal Web Site IconPubMedExternal Web Site Icon
  9. Valiente Moro  CThioulouse  JChauve  CNormand  PZenner  LBacterial taxa associated with the hematophagous mite Dermanyssus gallinae detected by 16S rRNA PCR amplification and TTGE fingerprinting. Res Microbiol2009;160:6370.DOIExternal Web Site IconPubMedExternal Web Site Icon
  10. Reeves  WKDowling  APGDasch  GARickettsial agents from parasiticDermanyssoidea (Acari: Mesostigmata). Exp Appl Acarol2006;38:1818DOIExternal Web Site IconPubMedExternal Web Site Icon