Which of the following is a chronic sign of Canine Ehrlichiosis?

Canine Ehrlichiosis is a disease caused by the bacteria Ehrlichia, which affects dogs through tick bites. A chronic sign of this disease is splenomegaly, or an enlarged spleen. This enlargement is a result of the immune response to the infection, indicating that the dog's body is fighting off the bacteria over an extended period.

In chronic cases, the immune system continuously reacts to the ongoing presence of the infection, leading to various systemic effects including the enlargement of lymphoid organs such as the spleen. This sign is significant because it indicates long-term disease progression and can help veterinarians assess the severity of the condition and tailor appropriate treatment.

Other potential symptoms, such as fever, might be more aligned with acute phases of the disease rather than chronic signs. Weight gain and increased energy levels are not typical indicators of illness; in fact, dogs affected by chronic diseases often exhibit weight loss and lethargy. Understanding these specific manifestations helps in diagnosing and managing chronic conditions in dogs effectively.