SymptomsBy Mayo Clinic Staff
If a tick carrying the bacterium that causes ehrlichiosis has been feeding on you for at least 24 hours, the following flu-like signs and symptoms may appear — usually within seven to 14 days of the bite:
- Mild fever
- Muscle aches
- Loss of appetite
- Joint pain
Some people infected with ehrlichiosis may have symptoms so mild that they never seek medical attention, and the body fights off the illness on its own. But untreated ehrlichiosis with persistent symptoms can result in an illness serious enough to require hospitalization.
When to see a doctor
It may take as long as 14 days after a tick bite for you to begin showing signs and symptoms of ehrlichiosis. If you get symptoms within two weeks of a tick bite, see your doctor.
If you experience any of the above symptoms soon after you've been in an area known to have ticks, see your doctor. Be sure to tell your doctor that you recently received a tick bite or visited an area with a high population of ticks.
July 11, 2015
- Tickborne diseases of the United States — A reference manual for health care providers. Centers for Disease Control and Prevention. http://www.cdc.gov/lyme/healthcare/clinicians.html. Accessed June 10, 2015.
- Sexton DJ. Human ehrlichiosis and anaplasmosis. http://www.uptodate.com/home. Accessed June 10, 2015.
- Ferri FF. Ehrlichiosis and anaplasmosis. In: Ferri's Clinical Advisor 2016. Philadelphia, Pa.: Mosby Elsevier; 2016. https://www.clinicalkey.com. Accessed June 10, 2015.
- Papadakis MA, et al., eds. Viral & rickettsial infections. In: Current Medical Diagnosis & Treatment 2015. 54th ed. New York, N.Y.: The McGraw-Hill Companies; 2015. http://www.accessmedicine.com. Accessed June 10, 2015.
- Lyme disease. American Lyme Disease Foundation. http://aldf.com/lyme-disease/#prevent. Accessed June 20, 2015.
- Preventing tick bites. Centers for Disease Control and Prevention. http://www.cdc.gov/lyme/prev/index.html. Accessed June 10, 2015.