Nipah virus infection is a rare but potentially fatal disease caused by the Nipah virus. The virus is primarily transmitted to humans through contact with infected bats or pigs, but it can also be spread through contact with contaminated fruit, food, or other materials.

Symptoms of Nipah virus infection can vary, but they typically begin with flu-like symptoms such as fever, headache, and muscle pain. These symptoms can progress to more severe symptoms such as encephalitis (inflammation of the brain), respiratory illness, and neurological problems. In severe cases, Nipah virus infection can lead to coma and death.

To diagnose Nipah virus infection, a doctor will typically begin by taking a detailed medical history and performing a physical examination. Additional tests that may be used to diagnose Nipah virus infection include:
Blood tests to check for antibodies to the Nipah virus
CT scan or MRI of the brain to look for signs of encephalitis
Lumbar puncture (spinal tap) to check for the presence of the virus in the cerebrospinal fluid
There is no specific treatment for Nipah virus infection, and treatment is primarily supportive.

This may include:
Hospitalization for close monitoring and supportive care
Intensive care for severe cases
Use of mechanical ventilation to support breathing
Treatment of symptoms such as fever and headache with medication
Prevention of Nipah virus infection is key, as there is no specific treatment once a person is infected. To prevent Nipah virus infection, it is important to avoid contact with infected bats and pigs, and to avoid consuming fruits or foods that may be contaminated with the virus.