Signs and Symptoms
When humans contract the Nipah virus, they typically start exhibiting signs of illness within three to five days of exposure. Initially, individuals may experience symptoms such as headache and fever. As the infection progresses, these initial symptoms can develop into more severe manifestations, including confusion, drowsiness, and disorientation. Additionally, some infected individuals may also present with respiratory symptoms during this phase, which can rapidly escalate to encephalitis and seizures. In severe cases, a coma can occur within a short span of 24 to 48 hours.
Long-Term Consequences
The Nipah virus outbreak in 1999 had a significant impact, infecting a total of 265 individuals, as reported by the CDC. Disturbingly, approximately 40% of those hospitalized succumbed to the disease. The World Health Organization (WHO) suggests that the fatality rate might even reach 75%, depending on the level of healthcare accessible to the affected individuals. Moreover, survivors of the illness may experience persistent long-term neurological complications. Additionally, latent infections can occur, with symptoms manifesting months or even years after the initial exposure.