Signs & Symptoms
The onset of clinical disease usually begins within 1-3 weeks of the tick bite. Early symptoms can be non-specific, including flu-like malaise, fever, chills and myalgias. More acute symptoms can include vomiting, acute weight loss, abdominal pain, cough, diarrhoea, haemorrages and renal failure.

Another ehrlichiosis that affects humans is Human Monocytic Ehrlichiosis (HME), which is caused by Ehrlichia chaffeensis. HME is clinically similar to HGA.