Case Report: A Case of Colorado Tick Fever Acquired in Southwestern Saskatchewan

Kamran Kadkhoda Cadham Provincial Laboratory, Winnipeg, Manitoba, Canada;
Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;
Department of Immunology, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;

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Michael Semus Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;

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Tom Jelic Department of Emergency Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;

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Andrew Walkty Department of Medical Microbiology and Infectious Diseases, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;
Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada;
Diagnostic Services Manitoba, Winnipeg, Manitoba, Canada

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Colorado tick fever virus is transmitted by Dermacentor andersoni ticks. In Canada, these ticks are found in the southern regions of British Columbia (Rocky Mountains) and Alberta, as well as southwestern Saskatchewan. Colorado tick fever should be clinically suspected in patients presenting with a biphasic febrile illness and leukopenia following tick exposure in the appropriate geographic area.

Author Notes

Address correspondence to Andrew Walkty, MS673B Microbiology, Health Sciences Centre, 820 Sherbrook St., Winnipeg, Manitoba, R3A 1R9, Canada. E-mail: awalkty@dsmanitoba.ca

Authors’ addresses: Kamran Kadkhoda, Cadham Provincial Laboratory, Winnipeg, Manitoba, Canada, E-mail: kamran.kadkhoda@gov.mb.ca. Michael Semus, Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada, E-mail: msemus1@exchange.hsc.mb.ca. Tom Jelic, Department of Emergency Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada, E-mail: tjelic@gmail.com. Andrew Walkty, MS673B Microbiology, Health Sciences Centre, Winnipeg, Manitoba, Canada, E-mail: awalkty@dsmanitoba.ca.

  • 1.

    Romero JR, Simonsen KA, 2008. Powassan encephalitis and Colorado tick fever. Infect Dis Clin North Am 22: 545–559.

  • 2.

    Klasco R, 2002. Colorado tick fever. Med Clin North Am 86: 435–440.

  • 3.

    Yendell SJ, Fischer M, Staples JE, 2015. Colorado tick fever in the United States, 2002–2012. Vector Borne Zoonotic Dis 15: 311–316.

  • 4.

    Eklund CM, Kohls GM, Brennan JM, 1955. Distribution of Colorado tick fever and virus-carrying ticks. J Am Med Assoc 157: 335–337.

  • 5.

    Cimolai N, Anand CM, Gish GJ, Calisher CH, Fishbein DB, 1988. Human Colorado tick fever in southern Alberta. CMAJ 139: 45–46.

  • 6.

    Kettyls GD, Verrall VM, Wilton LD, Clapp JB, Clarke DA, Rublee JD, 1972. Arbovirus infections in man in British Columbia. Can Med Assoc J 106: 1175–1179.

  • 7.

    Kettyls GD, Verrall VM, Hopper JMH, Kokan P, Schmitt N, 1968. Serological survey of human arbovirus infections in southeastern British Columbia. Can Med Assoc J 99: 600–603.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 8.

    Goodpasture HC, Poland JD, Francy DB, Bowen GS, Horn KA, 1978. Colorado tick fever: clinical, epidemiologic, and laboratory aspects of 228 cases in Colorado in 1973–1974. Ann Intern Med 88: 303–310.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 9.

    Spruance SL, Bailey A, 1973. Colorado tick fever. A review of 115 laboratory confirmed cases. Arch Intern Med 131: 288–293.

  • 10.

    Lindquist EE, Galloway TD, Artsob H, Lindsay LR, Drebot M, Wood H, Robbins RG, 2016. A Handbook to the Ticks of Canada. Available at: http://biologicalsurvey.ca/public/Bsc/Controller/Page/AGR-001-Ticks-Monogram.pdf. Accessed July 17, 2017.

    • PubMed
    • Export Citation
  • 11.

    Centers for Disease Control and Prevention, 2015. Colorado Tick Fever. Available at: https://www.cdc.gov/coloradotickfever/healthcareproviders.html. Accessed July 17, 2017.

    • PubMed
    • Export Citation
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