Ticks transmit diseases primarily through their bite. During feeding, they can inject pathogens into the host's bloodstream. The pathogens can be bacteria, viruses, or protozoa. For instance, Borrelia burgdorferi is transmitted by Ixodes scapularis and causes Lyme disease. Amblyomma americanum is known for transmitting Ehrlichiosis and Rhipicephalus sanguineus for Rocky Mountain spotted fever.
