“…Parkinsonism may also follow viral infections, for example von Economo's encephalitis [4], Japanese B encephalitis [5], Coxsackie B2 infection, West Nile infection, or human immunodeficiency virus infection. Chemotherapeutic agents or treatments for central nervous system malignancy may also trigger acute parkinsonism, either by causing direct injury to the basal ganglia (irradiation for bone marrow transplant [6]) or selective nigral toxicity (cytosine arabinoside [7], paclitaxel [8]). Other drugs that can also trigger acute parkinsonism include selective serotonin reuptake inhibitors, buproprion, lithium, valproate, cyclosporin, amiodarone, captopril, amlodipine, meperidine, and vincristine.…”