Ehrlichiosis is a tick-borne illness transmitted to humans.
It is primarily found in the southwestern areas of the United
States and somewhat in the upper Midwest. It has been seen
in Oklahoma, Missouri, Virginia, Georgia and Illinois. The
Lonestar tick is the most frequent culprit. You can see an
example of the Lonestar tick in our tick section on Survive
Outdoors. Ehrlichiosis does resemble Rocky Mountain spotted
fever. The incubation period is anywhere from 7-21 days. An
incubation period is defined as the time between exposure
(being bitten by tick) and appearance of your first symptoms.
Signs and Symptoms
Symptoms associated with Ehrlichiosis may be broad ranging,
from a very mild flu like presentation to a life-threatening
situation. Symptoms may also be similar to those associated
with Lyme disease. In ehrlichiosis, approximately 35% of patients
do develop a red dot type rash. It is unlike a Lyme disease
rash in appearance. The rash occurs more commonly in children
and young adults and targets the palms and soles of the feet
in less than 10% of the cases, according to Auerbach. Treatment
should begin as soon as Ehrlichiosis is suspected, even before
a diagnosis is made.
Tetracycline and Doxycycline have been found to be very