EHRLICHIOSIS

ârlĭkēōˈsĭs, any of several diseases caused by rickettsia of the genus Ehrlichia. Ehrlichiosis is transmitted by ticks. Both human forms tend to develop about nine days after a tick bite. Symptoms include severe headache and chills and low white blood cell and platelet counts. The lack of a rash distinguishes them from Rocky Mountain spotted fever and Lyme disease; lack of upper respiratory and gastrointestinal symptoms distinguishes them from influenza. Many cases are mild, and all are treatable with antibiotics (tetracycline and doxycycline); however, ehrlichiosis can be fatal in some cases when diagnosis and treatment are delayed.

It was known for years that certain species (some believe them to be variant strains of a single species) can cause disease in animals, for example E. canis in dogs and E. phagocytophila in sheep and cattle. In the mid-1980s human ehrlichiosis was first recognized. The causative agent was found to be E. chaffeensis. This form is now known as human monocytic ehrlichiosis. In 1990 another form of the disease, human granulocytic ehrlichiosis, was identified. The Ehrlichia organisms invade various white blood cells (see blood; immunity). E. chaffeensis invades monocytes; granulocytic Ehrlichia invades granulocytes.

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The Columbia Encyclopedia, Sixth Edition Copyright© 2004, Columbia University Press. Licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

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Questia Books and Articles on: Ehrlichiosis
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books on: Ehrlichiosis  - 9 results

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1.
Everything You Need to Know about Lyme Disease and Other Tick-Borne Disorders
Book by Karen Vanderhoof-Forschner; Wiley, 2003
Subjects: Lyme Disease--Popular Works, Tick-Borne Diseases--Popular Works
...of Tick-Borne Encephalitis 112 Ehrlichiosis 113 Masters Disease (Southern...rheumatic fever, anthrax, food poisoning, ehrlichiosis, Q-fever, human rabies, toxic shock...Rocky Mountain Spotted Fever, and ehrlichiosis) are deferred indefinitely. The first...
2.
Dangerous Places: Health, Safety, and Archaeology
Book by David A. Poirier, Kenneth L. Feder; Bergin and Garvey, 2001
Subjects: Archaeology--Health Aspects--United States, Archaeology--United States--Field Work, Archaeology--United States--Safety Measures, Excavations (Archaeology)--United States
...tick transmit the infection. Co-infection with ehrlichiosis and/or Lyme disease may occur. Symptoms...diagnosis. Treatment is with analgesics. Ehrlichiosis Ehrlichiosis is caused by rickettsiae- like organisms, which...
3.
Conservation Medicine: Ecological Health in Practice
Book by A. Alonso Aguirre, Richard S. Ostfeld, Gary M. Tabor, Carol House, Mary C. Pearl; Oxford University Press, 2002
Subjects: Ecology, Environmental Health
...snakes, for example, help regulate populations of rodents opportunistic species involved in the transmission of Lyme disease, ehrlichiosis, hantaviruses, arenaviruses, leptospirosis, and human plague. Freshwater fish, reptiles, birds, and bats help limit the...
4.
Where the Germs Are: A Scientific Safari
Book by Nicholas Bakalar; Wiley, 2003
Subjects: Bacteria, Germ Theory Of Disease, Medical Microbiology
...sequencing (tests that examine the genetic code) have now been used to identify the organisms that cause hepatitis C, human ehrlichiosis, hantavirus pul- monary syndrome, Nipah virus disease, and AIDS. Understanding infection at the level of molecules has...
5.
Neighbors & Strangers: The Fundamentals of Foreign Affairs
Book by William R. Polk; University Of Chicago Press, 1997
Subjects: Commerce--History, National Security, World Politics
...as "Rocky Mountain spotted fever," has been recognized for years, and, more recently, Lyme disease and human granulocytic ehrlichiosis HGE have become endemic in large areas of North America and are being spread abroad. So it would seem reasonable to...
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journal articles on: Ehrlichiosis  - 6 results

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1.
Necrotic Spider or Tick Bite? Hobo Spider Venom or Ehrlichial Bacteria?
Journal article by Cornelia Richardson-Boedler; The Forensic Examiner, Vol. 16, 2007
Subjects: Bites (Injuries)--Care and treatment, Bites (Injuries)--Diagnosis, Bites and stings--Care and treatment, Bites and stings--Diagnosis, Ehrlichiosis--Care and treatment, Ehrlichiosis--Diagnosis, Spider venom--Complications and side effects, Spider venoms--Complications and side effects
...the zoonotic hematological illness, ehrlichiosis, thus aiding clinicians and forensic...2002; Rosenstein Kramer, 1987). Ehrlichiosis has caused a residual local excoriation...as suggested by Sams et al. (2001). Ehrlichiosis as Differential Diagnosis For a (necrotizing...
2.
Lyme Disease and Other Tick-Borne Diseases: A Review
Journal article by George H. Reed; Journal of Environmental Health, Vol. 55, 1993
Subjects: Babesiosis--Care and treatment, Ehrlichiosis--Care and treatment, Lyme disease--Care and treatment, Q fever--Care and treatment, Relapsing fever--Care and treatment, Rocky Mountain spotted fever--Care and treatment, Tick-borne diseases--Evaluation, Ticks--Control, Tularemia--Care and treatment
3.
Residual Effects of Selected Pyrethroid Insecticides on Lone Star Ticks
Journal article by Jerome Goddard; Journal of Environmental Health, Vol. 61, 1998
Subjects: Pyrethroids--Research, Ticks--Research
...Mountain spotted fever, Lyme disease, and ehrlichiosis. Accordingly, reducing the number of...spotted fever (RMSF), Lyme disease, ehrlichiosis, and tick paralysis. Approximately...are reported annually in the state. Ehrlichiosis and tick paralysis are only rarely...
4.
A Climate-Based Model Predicts the Spatial Distribution of the Lyme Disease Vector Ixodes Scapularis in the United States
Journal article by John S. Brownstein, Theodore R. Holford, Durland Fish; Environmental Health Perspectives, Vol. 111, 2003
...et al. 1985) and human granulocytic ehrlichiosis (Des Vignes and Fish 1997; Schwartz...of the agent of human granulocytic ehrlichiosis by host-seeking Ixodes scapularis...rickettsial agent of human granulocytic ehrlichiosis in ticks from a hyperendemic focus...
5.
Clustering Effects of Lone Star Ticks in Nature: Implications for Control
Journal article by Jerome Goddard; Journal of Environmental Health, Vol. 59, 1997
Subjects: Parasites--Behavior, Parasitological research--Analysis, Ticks--Control
...Mississippi (Rocky Mountain spotted fever RMSF, Lyme disease, ehrlichiosis, and tick paralysis). Approximately 20 to 30 cases of RMSF...cases of Lyme disease are reported in the state annually. Ehrlichiosis and tick paralysis are reported only rarely. Although cases...
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magazine articles on: Ehrlichiosis  - 10 results

       More magazine Results: 1-10 >>  
 
1.
Outdoor Workers Risk Insect IIIs
Magazine article by Patricia M. Fernberg; Occupational Hazards, Vol. 61, June 1999
Subjects: Ehrlichiosis--Prevention, Insects--Diseases, Occupational health and safety--Management, Occupational safety and health--Management, Outdoor life--Health aspects, Work related injuries--Prevention, Work-related injuries--Prevention
...encephalitis cases and a fairly new and sometimes fatal disease, Ehrlichiosis -- are on the rise. All four diseases are transmitted through...medical help. In the past two years, more than 400 cases of Ehrlichiosis have been diagnosed in 30 states, mainly in the southeastern...
2.
Fighting Fleas and Ticks
Magazine article by Dixie Farley; FDA Consumer, Vol. 30, July 1996
Subjects: Fleas as carriers of disease--Analysis, Fleas--Analysis, Fleas--Control, Insect carriers of disease--Analysis, Insecticides--Health aspects, Tick-borne diseases--Prevention, Ticks--Control
...appetite loss, weakness. pale gums * ehrlichiosis--high fever, muscle aches Lyme disease...of 415 cases of human moncytotropic ehrlichiosis, a disease also transmitted by ticks...similar disease, human granulocytic ehrlichiosis, or HGE. About 170 cases have been...
3.
Ticks May Fascinate Biologists, but the Blood Suckers Worry Health Officials
Magazine article by Peter Jaret; National Wildlife, August 2000
Subjects: Lyme disease--Physiological aspects, Outdoor recreation--Health aspects, Tick paralysis--Physiological aspects, Tick-borne diseases--Transmission, Ticks--Behavior
...hemorrhaging into the skin. Then theres ehrlichiosis, which also causes severe flulike symptoms...researchers added a third when a form of ehrlichiosis known to afflict dogs also showed up...diagnosed with one or another form of ehrlichiosis since the disease was discovered...
4.
Man and Beast Both at Risk
Magazine article; USA Today (Society for the Advancement of Education), Vol. 134, October 2005
Subjects: Zoonoses--Analysis, Zoonoses--Causes of, Zoonoses--Observations, Zoonoses--Testing
...Rocky Mountain spotted fever, and Ehrlichiosis, a long-recognized canine condition. In dogs, Ehrlichiosis can cause chronic weight loss, paralysis...Rocky Mountain spotted fever and Ehrlichiosis. A vectors bite infects a host, who...
5.
Pest Management: Not for Amateurs
Magazine article by Cindy Mannes; USA Today (Society for the Advancement of Education), Vol. 131, March 2003
Subjects: National Pest Control Association--Surveys, Pest control, Pests--Control
...litters a year. Human ehrlichiosis. A 19-year-old Missouri...an illness called human ehrlichiosis one week after being admitted...following a tick bite. Human ehrlichiosis is one of five diseases...
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newspaper articles on: Ehrlichiosis  - 6 results

       More newspaper Results: 1-6 >>  
 
1.
Lyme Disease Strikes for Seventh Time
Newspaper article; Daily Herald (Arlington Heights, IL), August 7, 2008
Subjects: Lyme disease
...McHenry County this year. While seven cases involved Lyme disease, one involved Rocky Mountain spotted fever and the other was Ehrlichiosis. "With tick-bourne illnesses, they can happen anywhere at anytime," she said. "This can happen in your own backyard, which...
2.
YOUR MONEY: Make Pet Insurance a Holiday Port of Call
Newspaper article; The News Letter (Belfast, Northern Ireland), September 14, 2004
...eye disease and kidney failure. Other diseases that have shown increases of about 100 per cent include babesiosis and ehrlichiosis - blood diseases spread by ticks - and heartworm, a parasite passed on by mosquitoes. As millions of pet owners return...
3.
Take Care to Avoid the Tiny, Terrible Tick
Newspaper article; Daily Herald (Arlington Heights, IL), May 28, 2007
Subjects: Immunization
...ticks out, and June and July are peak seasons. Along with Lyme disease, ticks can transmit Rocky Mountain spotted fever, ehrlichiosis and tularemia, all fairly uncommon in Illinois and all potentially serious, though treatable with antibiotics. Lyme disease...
4.
Tick.Tick.Tick
Newspaper article by Karen Goldberg Goff; The Washington Times, May 21, 2000
...addition to spirochete, there are other forms of bacteria that can be transmitted by ticks and cause Lyme-like symptoms. Ehrlichiosis, caused by the ehrlichia bacterium, and Babesiosis, caused by a malaria-like red-blood-cell parasite, are two of the common...
5.
BARKING MAD; He Has Attacked the Neighbours, Hates Other Dogs and Is Hardly Ever out of the Vets. but [Pounds Sterling]10,000 and Five Years of Agony Later, One Couple Have Finally Learned to Love the Starving Mutt They Rescued on a Caribbean Holiday
Newspaper article; The Daily Mail (London, England), December 30, 2006
...it quickly transpired that Gilpin was not calm - he was seriously ill with a potentially fatal tick-borne disease called Ehrlichiosis. The vet explained the disease - a kind of canine leukaemia - was reversible with treatment, but because the ticks were still...
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encyclopedia articles on: Ehrlichiosis  - 5 results

 
 
1.
Ehrlichiosis
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
EHRLICHIOSIS arlikeo sis, any of several diseases caused by rickettsia of the genus Ehrlichia. Ehrlichiosis is transmitted by ticks. Both human forms tend to...antibiotics (tetracycline and doxycycline); however, ehrlichiosis can be fatal in some cases when diagnosis and treatment...
2.
Human Granulocytic Ehrlichiosis
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
HUMAN GRANULOCYTIC EHRLICHIOSIS see ehrlichiosis . ____________________ Copyright 2009 Columbia University Press. Used with the permission of Columbia University Press. All rights reserved.
3.
Lyme Disease
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...memory loss, arthritis, and eye inflammation. Lyme disease is sometimes accompanied by babesiosis or human granulocytic ehrlichiosis , which also infect the deer tick. See also Rocky Mountain spotted fever . See P. Murray, The Widening Circle (1996...
4.
Mite
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...Ticks transmit Rocky Mountain spotted fever , tularemia , Lyme disease , equine encephalitis , several forms of ehrlichiosis , and other diseases. Each species needs three different hosts to complete its life cycle. Typically the larval stage will...
5.
Rickettsia
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
...occupational hazard among dairy farm and slaughterhouse workers. A new rickettsia, Ehrlichia chaffeenis, which results in human ehrlichiosis , was identified in 1986. Symptoms and Treatment The similar symptoms of rickettsial infections often make it difficult...


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