Ehrlichiosis
Condition
Definition
Ehrlichiosis is an infection passed through a tick bite. It can be deadly unless medicine is taken to treat it.
Causes
Ehrlichiosis is caused by specific bacteria. The bacteria are passed through the bite of a tick. The lonestar tick, deer tick, and dog tick are linked with this infection.
Risk Factors
Things that may raise the risk of ehrlichiosis are:
- Being in areas known to have ticks
- Spending time in the Mid-Atlantic, Southeastern, and Southcentral United States
- Having a weakened immune system
Symptoms
It may take 1 to 2 weeks for symptoms to happen. The first symptoms are like the flu:
- Fever
- Chills
- Muscle and joint aches
- Headaches
Some people may also have a rash. Rarely, people may have problems breathing or heart symptoms.
Treating the infection right away improves outcomes, regardless of symptoms.
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Diagnosis
The doctor will ask about symptoms and past health. The person will be asked if they have spent time in areas known for ticks. A physical exam will be done.
A blood test may be done to check for signs of ehrlichiosis.
Treatment
Ehrlichiosis is treated with antibiotics.
Prevention
To lower the risk of this infection:
- Avoid tick-infested areas.
- Wear light-colored clothing—to help see a crawling tick.
- Tuck pants into socks—when in tick-infested areas.
- Regularly check for and remove ticks from the body—when in tick-infested areas.
- Remove ticks using fine-tipped tweezers. Grasp the tick close to the skin’s surface. Pull upward steadily.
- Clean tick bites with soap and water.
- Use tick repellents.
Centers for Disease Control and Prevention
http://www.cdc.gov
Family Doctor—American Academy of Family Physicians
http://familydoctor.org
CANADIAN RESOURCES:
Health Canada
https://www.canada.ca
Public Health Agency of Canada
http://www.phac-aspc.gc.ca
Centers for Disease Control and Prevention
http://www.cdc.gov
Family Doctor—American Academy of Family Physicians
http://familydoctor.org
CANADIAN RESOURCES:
Health Canada
https://www.canada.ca
Public Health Agency of Canada
http://www.phac-aspc.gc.ca
References
- Biggs HM, Behravesh CB, et al. Diagnosis and management of tickborne rickettsial diseases: rocky mountain spotted fever and other spotted fever group rickettsioses, ehrlichioses, and anaplasmosis - United States. MMWR Recomm Rep. 2016;65(2):1-44.
- Ehrlichiosis and anaplasmosis. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/ehrlichiosis-and-anaplasmosis.
- Ehrlichiosis. Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/ehrlichiosis.
- Snowden, Jessica, Bartman, Marc, Kong, Erwin, and Simonsen, Kari. Ehrlichiosis. StatPearls Journal of Clinical Sciences, 2021. Pubmed, https://www.ncbi.nlm.nih.gov/books/NBK441966/.
Contributors
- April Scott, NP
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