Skip directly to site content Skip directly to page options Skip directly to A-Z link Skip directly to A-Z link Skip directly to A-Z link
Volume 15, Number 10—October 2009
Dispatch

Novel Rickettsia in Ticks, Tasmania, Australia

Leonard IzzardComments to Author , Stephen Graves, Erika Cox, Stan Fenwick, Nathan Unsworth, and John Stenos
Author affiliations: Australian Rickettsial Reference Laboratory, Geelong, Victoria, Australia (L. Izzard, S. Graves, J. Stenos); Murdoch University, Murdoch, Western Australia, Australia (L. Izzard, S. Fenwick, J. Stenos); Launceston General Hospital, Launceston, Tasmania, Australia (E. Cox); Texas A&M Health Science Center, College Station, Texas, USA (N. Unsworth)

Main Article

Figure 2

Phylogenetic tree showing the relationship of a 4,834-bp fragment of the outer membrane protein B gene of Candidatus Rickettsia tasmanensis (in boldface) among all validated rickettsia species. The tree was prepared by using the neighbor-joining algorithm within the MEGA 4 software (10). Bootstrap values are indicated at each node. Scale bar indicates 2% nucleotide divergence.

Figure 2. Phylogenetic tree showing the relationship of a 4,834-bp fragment of the outer membrane protein B gene of Candidatus Rickettsia tasmanensis (in boldface) among all validated rickettsia species. The tree was prepared by using the neighbor-joining algorithm within the MEGA 4 software (10). Bootstrap values are indicated at each node. Scale bar indicates 2% nucleotide divergence.

Main Article

References
  1. Unsworth  NB, Stenos  J, Graves  SR, Faa  AG, Cox  GE, Dyer  JR, Flinders Island spotted fever rickettsioses caused by “marmionii” strain Rickettsia honei, eastern Australia. Emerg Infect Dis. 2007;13:566–73. DOIPubMedGoogle Scholar
  2. Chin  RH, Jennens  ID. Rickettsial spotted fever in Tasmania. Med J Aust. 1995;162:669.PubMedGoogle Scholar
  3. Watts  MR, Benn  RA, Hudson  BJ, Graves  S. A case of prolonged fatigue following an acute rickettsial infection. QJM. 2008;101:591–3. DOIPubMedGoogle Scholar
  4. Sexton  DJ, Dwyer  B, Kemp  R, Graves  S. Spotted fever group rickettsial infections in Australia. Rev Infect Dis. 1991;13:876–86.PubMedGoogle Scholar
  5. Roberts  FH. Australian ticks. Melbourne: Commonwealth Scientific and Industrial Research Organisation; 1970.
  6. Parker  R, Kohls  G, Cox  G, Davis  G. Observations on an infectious agent from Amblyomma maculatum. Public Health Rep. 1939;54:1482–4.
  7. Paddock  CD, Sumner  JW, Comer  JA, Zaki  SR, Goldsmith  CS, Goddard  J, Rickettsia parkeri: a newly recognized cause of spotted fever rickettsiosis in the United States. Clin Infect Dis. 2004;38:805–11. DOIPubMedGoogle Scholar
  8. Stenos  J, Graves  S, Unsworth  N. A highly sensitive and specific real-time PCR assay for the detection of spotted fever and typhus group rickettsiae. Am J Trop Med Hyg. 2005;73:1083–5.PubMedGoogle Scholar
  9. Fournier  PE, Dumler  JS, Greub  G, Zhang  J, Wu  Y, Raoult  D. Gene sequence-based criteria for identification of new Rickettsia isolates and description of Rickettsia heilonjiangensis sp. nov. J Clin Microbiol. 2003;41:5456–65. DOIPubMedGoogle Scholar
  10. Tamura  K, Dudley  J, Nei  M, Kumar  S. MEGA4: Molecular Evolutionary Genetics Analysis (MEGA) software version 4.0. Mol Biol Evol. 2007;24:1596–9. DOIPubMedGoogle Scholar
  11. Felsenstein  J. PHYLIP: Phylogeny Inference Package (Version 3.2). Cladistics. 1989;5:164–6.
  12. Mediannikov  O, Matsumoto  K, Samoylenko  I, Drancourt  M, Roux  V, Rydkina  E, Rickettsia raoultii sp. nov., a spotted fever group rickettsia associated with Dermacentor ticks in Europe and Russia. Int J Syst Evol Microbiol. 2008;58:1635–9. DOIPubMedGoogle Scholar
  13. Vilcins  IM, Old  JM, Deane  E. Detection of a Hepatozoon and spotted fever group Rickettsia species in the common marsupial tick (Ixodes tasmani) collected from wild Tasmanian devils (Sarcophilus harrisii), Tasmania. Vet Parasitol. 2009;162:23–31. DOIPubMedGoogle Scholar

Main Article

Page created: December 08, 2010
Page updated: December 08, 2010
Page reviewed: December 08, 2010
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.
file_external