Nipah virus warning as 'up to 75% of infected could die' in India outbreakHealth chiefs have issued a warning over the Nipah virus after two cases were confirmed in West Bengal, India, with 200 people quarantined. The UKHSA has cautioned that fatality rates range from 40 to 75 percent among Nipah virus patients. ‌View 3 Images Health workers wearing protective gear shift people who have been in contact with a person infected with the Nipah virus to an isolation center (Image: AFP via Getty Images)How is Nipah virus transmitted? Regrettably, no verified specific remedy exists for Nipah virus infection, and there's currently no licensed preventative vaccine available. The United States has reported zero cases of the Nipah virus to date.