Chapter

Colorado tick fever and other arthropod-borne reoviruses

M.J. Warrell and David A. Warrell

in Oxford Textbook of Medicine

Published on behalf of Oxford University Press

Published in print May 2010 | ISBN: 9780199204854
Published online May 2012 | e-ISBN: 9780199570973 | DOI: http://dx.doi.org/10.1093/med/9780199204854.003.070511_update_001

Series: Oxford Textbooks

Colorado tick fever and other arthropod-borne reoviruses

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Human pathogens are found in six genera of Reoviridae: Reovirus, Rotavirus, Orthoreovirus, and three arthropod-borne genera—Coltivirus (Colorado tick fever, Salmon River virus, and Eyach viruses), Orbivirus (Kemerovo, Changuinola, Orungo, and Lebombo) and Seadornavirus (Banna virus).

Colorado tick fever—common in parts of north-western North America; acquired from tick (ixodid) bites, most often by hikers and campers, presenting 3 to 6 days later with sudden fever, rigors, generalized aches, myalgia, headache and backache, rashes (12%) and gastrointestinal symptoms (20%). Diagnosis confirmed by detection of viral antigen in erythrocytes or serum, or by serodiagnosis. Management is symptomatic. Illness usually resolves in 10 to 14 days, but convalescence may be prolonged. Prevention is by avoiding, repelling, and rapidly removing ticks; no vaccines are available....

Chapter.  1341 words. 

Subjects: Medical Microbiology and Virology ; Infectious Diseases

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