Presentation
I. pacificus – West Coast Rocky Mountains at 4,000-10,000 feet of altitude E. chaffeensis, E. ewingii – southeastern, south central, and mid-Atlantic states EML – Wisconsin and Minnesota Clinical presentation Influenza-like illness Rash – uncommon (can [arupconsult.com]
More severe cases present as headache, myalgia, photophobia, rash, conjunctivitis, and hemorrhaging. The disease is self-limiting; however, red blood cells retain the virus for several months, so patients should not donate blood during this time. [chegg.com]
Consultant Virologist and Director, Clinical Microbiology and Public Health Laboratory, Cambridge UK, 1991-2002 (Clinical Director of Pathology, Addenbrooke's Hospital, Cambridge, 1998-2002); Senior Research Fellow, CNRS, Gif-sur-Yvette, France, 2002-present [books.google.es]
The resulting bootstrapped neighbor-joining tree drawn from these alignments, using bluetongue virus (BTV) as an outgroup, is presented in Fig. 4B. [jvi.asm.org]
Entire Body System
- Camping
Unfortunately, this is also when the weather is pleasant for hiking and camping. The best way to avoid getting bitten and catching this disease is wearing long sleeves or pants, avoiding high tick-infested areas, and wearing tick repellent. [en.wikipedia.org]
(Predisposing Factors) The risk factors for Colorado Tick Fever include: Living, staying, or traveling to the Rocky mountain areas (the endemic regions) of US and Canada; especially, in the summer months is a major risk factor Trekking, camping, climbing [dovemed.com]
- Fishing
Journal of Fish Diseases 27: 687–692. Further Reading Barber TL and Jochim MM (1985) Bluetongue and related orbiviruses. Progress in Clinical and Biological Research 178: 1–746. Bowen GS (1988) Colorado tick fever. In: Monath TP (ed.) [els.net]
Reoviruses constitute one of the largest virus families in terms of numbers of genera and breadth of host range, which includes plants, arthropods, fish, and mammals ( 21 ; see reference 25 for review). [jvi.asm.org]
- Falling
Abstract RNA viruses of filamentous fungi fall into two broad categories, those that contain double-stranded RNA (dsRNA) genomes in rigid particles and those that are more closely related to positive-sense, single-stranded RNA viruses with dsRNA replicative [ncbi.nlm.nih.gov]
Fungal viruses classified as dsRNA viruses fall within two broad categories. The “true” dsRNA viruses have rigid particles containing genomic dsRNA that is not polyadenylated on either strand. [jvi.asm.org]
Eyes
- Photophobia
[…] a Muscle pain (esp. in the posterior legs) Coltivirus causes **Colorado Tick Fever** – Biphasic fever, headache, chills, muscle pain that is particularly prominent in the posterior legs, photophobia, and leukopenia. – Notice that these symptoms and the [drawittoknowit.com]
Colorado tick fever virus can cause a fever, chills, headache, photophobia, myalgia, arthralgia, and lethargy. Children, in particular, may develop a hemorrhagic disease. [findwords.info]
More severe cases present as headache, myalgia, photophobia, rash, conjunctivitis, and hemorrhaging. The disease is self-limiting; however, red blood cells retain the virus for several months, so patients should not donate blood during this time. [chegg.com]
Causes biphasic fever, myalgias, ocular pain, photophobia and headache. U.S. [definitions.net]
Neurologic
- Meningism
In either case, the infection can lead to encephalitis or meningitis. [findwords.info]
In either case, the infection can lead to encephalitis or meningitis. [2] Virology [ edit ] Coltivirus is a genus of viruses. [en.wikipedia.org]
[…] breathing, hemorrhage, renal failure, neurological problems) or death Influenza-like illness, with frequent biphasic fever Rash – uncommon and short-lived (can be macular, maculopapular, or petechial) Central nervous system diseases (stiff neck, confusion, meningitis [arupconsult.com]
- Lethargy
Colorado tick fever virus can cause a fever, chills, headache, photophobia, myalgia, arthralgia, and lethargy. Children, in particular, may develop a hemorrhagic disease. [findwords.info]
Workup
Serum
- Erythroblast
Erythrocytes, which are enucleated red blood cells, seem to be infected while they are erythroblasts, their nucleated precursor stage. The virus stays in these red blood cells without harming it for up to four months. [microbenotes.com]
Other Pathologies
- Viral Inclusion Body
Electron microscopic analysis demonstrated that TarTV particle had a non-enveloped bilayer icosahedral structure, and viral inclusion bodies were formed in infected cells. [pubag.nal.usda.gov]
Treatment
Uveitis Posterior Uveitis Intermediate Uveitis Panuveitis Global Uveitis Treatment Market, By Cause: Infectious Uveitis Non-Infectious Uveitis Global Uveitis Treatment Market, By Geography: North America By Treatment: Corticosteroids Immunosuppressants [gii.co.jp]
Treatment of Coltivirus No specific antiviral treatment is available. Patients with suspected CTF are given supportive care as appropriate. Prevention and control of Coltivirus No vaccine to prevent CTF. [microbenotes.com]
The best way to avoid getting bitten and catching this disease is wearing long sleeves or pants, avoiding high tick-infested areas, and wearing tick repellent. [4] Treatment [ edit ] Reverse transcription-polymerase chain reaction (RT-PCR) procedure Colorado [en.wikipedia.org]
Prognosis
(Outcomes/Resolutions) Colorado Tick Fever is usually self-limiting and the prognosis excellent, even when patients have severe neurological problems. [dovemed.com]
Prognosis The prognosis for patients with Colorado tick fever is excellent, even in cases complicated by neurologic symptoms. Although prompt recovery is the expected outcome, rare fatalities have been reported. [emedicine.medscape.com]
Etiology
Florio L, Stewart M and Mugrage ER (1946) The etiology of Colorado tick fever. Journal of Experimental Medicine 83: 1–10. [els.net]
Pathophysiology and Etiology The cause of Colorado tick fever is infection with the causative agent that is transmitted by a tick bite. This agent is a double-stranded RNA virus of the genus Coltivirus in the family Reoviridae. [emedicine.medscape.com]
(Etiology) Colorado Tick Fever is a tick-borne infection that is caused by the Colorado tick fever virus (CTFV) The major carrier of this virus is the Rocky Mountain wood tick, which is mostly found in the US (Colorado and certain other adjoining states [dovemed.com]
Epidemiology
This ELISA will be useful to clarify the epidemiological status and the suspected pathogenicity of the virus. [ncbi.nlm.nih.gov]
[…] information about: ISBN: 9781498819732 1498819737 OCLC Number: 1024250029 Description: 1 online resource (17 pages) Contents: COLTIVIRUS INFECTIONS: GLOBAL STATUS; Copyright; Introduction: The GIDEON e-book series; Table of Contents; Colorado tick fever; Epidemiology [worldcat.org]
Fauquet has extensive experience in field virology and epidemiology, but also in molecular and experimental virology. He is mostly interested in tropical plant viruses and particularly in geminiviruses that are devastating tropical crops. [books.google.es]
Epidemiology of Coltivirus The virus that causes Colorado tick fever is the second most common Arbovirus in the United States, and several hundred cases are reported to the Centers for Disease Control and Prevention (CDC) annually. [microbenotes.com]
Epidemiologic, clinical, and laboratory findings of human ehrlichiosis in the United States, 1988. JAMA 264 : 2251 – 2258. [PubMed] 80. Walker DH, Dumler JS. 2000. [asmscience.org]
Pathophysiology
Pathophysiology and Etiology The cause of Colorado tick fever is infection with the causative agent that is transmitted by a tick bite. This agent is a double-stranded RNA virus of the genus Coltivirus in the family Reoviridae. [emedicine.medscape.com]
Prevention
Prevention and control of Coltivirus No vaccine to prevent CTF. [microbenotes.com]
It belongs to medical microbiology and it is very important for clinics, public health and prevention. [chinacdc.cn]
Prevention of tick-borne diseases. Med Clin North Am. 2002 Mar. 86(2):219-38. [Medline]. Centers for Disease Control and Prevention. Colorado Tick Fever: Prevention. Available at http://www.cdc.gov/coloradotickfever/prevention.html. [emedicine.medscape.com]
Centers for Disease Control and Prevention (CDC). 1995. Human granulocytic ehrlichiosis—New York, 1995. MMWR Morb Mortal Wkly Rep 44 : 593 – 595. [PubMed] 84. Telford SR III, Lepore TJ, Snow P, Warner CK, Dawson JE. 1995. [asmscience.org]