HTLV-2 is associated with milder neurologic disorders and chronic pulmonary infections. Gastrointestinal dilation, cardiac arrhythmias, heart murmurs, and neurologic abnormalities can also occur. Favourable disease stage correlates with a higher risk for development of neurologic sequelae. Patients present in childhood with infectious, neurologic or dermatologic features. Most rabbits with neurologic signs show vestibular dysfunction only. Secondary signs also occur with neurologic disease. PBA occurs secondary to a neurologic disorder or brain injury. Mercury has been linked to developmental deficits in children and neurologic symptoms. Physiotherapy and occupational therapy are beneficial for patients with the neurologic form of the disease. Top leading causes of organ systems include neurologic and cardiovascular, e.g., congestive heart failure. Patients typically aspirate food because they have esophageal, gastric or neurologic problems. Lyme can also result in long-term neurologic complications. It is a physical finding in certain neurologic, ophthalmologic, and endocrine disease. Otherwise, the diagnosis is one made clinically after a thorough neurologic exam. Cholinergic systems are implicated in numerous neurologic functions.