WHO Chief Warns of Nipah Virus in India, Calls It Extremely Serious

Geneva: The World Health Organization (WHO) has issued a warning about recent cases of Nipah virus detected in India. WHO Director-General Tedros Adhanom Ghebreyesus described the virus as extremely rare but highly serious. He confirmed that the recent cases are limited to India, with no reported spread to other countries.

In a post on social media platform X, Ghebreyesus cited two recent cases in West Bengal, marking the third known instance in the state since the virus was first identified in 1998. He emphasized that Indian authorities are closely monitoring over 190 people who had contact with the patients, and so far, no further infections have been detected. Surveillance and testing have been intensified, and health centers are implementing strict prevention and control measures. Citizens are also being informed on how to protect themselves.

Low Risk of Spread

WHO had earlier clarified that the risk of transmission is low, and there is currently no need to restrict travel or trade. There is also no evidence of human-to-human transmission at this stage.

Details of the West Bengal Cases

The recent cases were reported in North 24 Parganas, West Bengal. Both patients were nursing staff. Their conditions have since improved, and test results have turned negative. The male nurse has been discharged, while the female nurse is under observation after being taken off ventilator support. Both began showing symptoms in late December 2025 and were admitted to the hospital in early January 2026.

What is Nipah Virus?

Nipah virus is considered one of the most dangerous infections in humans, with a fatality rate of 40–75%. The virus disrupts the immune system, preventing the body from mounting an effective defense. Unlike other viral infections where immune response aids recovery, Nipah virus misdirects the immune system, worsening the infection. It spreads to humans primarily through close contact with infected bats or consumption of contaminated food.