Dengue infection is endemic in more than 100 countries, mostly in the developing world. Recent observations indicate that the clinical profile of dengue is changing, and that neurological manifestations are being reported more frequently. The exact incidence of various neurological complications is uncertain. The pathogenesis of neurological manifestations is multiple and includes: neurotrophic effect of the dengue virus, related to the systemic effects of dengue infection, and immune mediated. In countries endemic to dengue, it will be prudent to investigate for dengue infection in patients with fever and acute neurological manifestations. There is need for understanding of the pathogenesis of various neurological manifestations.
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