WHO has assessed India’s recent Nipah virus cases as posing a low risk of wider spread, saying there is no evidence of sustained human-to-human transmission and no need for travel or trade restrictions.
The World Health Organization (WHO) has reaffirmed that the recent Nipah virus outbreak in India poses a low risk of wider spread, and there is currently no justification for imposing travel or trade restrictions, the agency said Friday. The assessment follows the confirmation of two cases of Nipah virus infection in West Bengal earlier this month.
WHO’s update states that there is no evidence of sustained human-to-human transmission, and the current threat level remains nationally, regionally, and globally low. Both cases are contained within the North 24 Parganas district, and neither patient was travelling while symptomatic, reducing the likelihood of exportation.
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Regional Response: Asian Countries Tighten Health Screening
Despite the WHO’s reassurance, several Asian authorities have expanded health screenings at airports and land borders, aiming to detect potential Nipah cases among travellers after reports from India. Countries including Thailand, Singapore, Hong Kong, Malaysia, and, more recently, Pakistan, have introduced thermal checks, health questionnaires, and travel history reviews at entry points.
These measures reflect heightened vigilance rather than a shift in WHO’s risk classification.
India Confirms Containment; Contacts Test Negative
Indian health officials say the outbreak is contained, with 196 contacts traced, monitored, and tested, all of whom remain symptom-free and negative for the virus. Public health teams continue surveillance and strict infection control, especially in healthcare settings where infections were first detected.
Local authorities and medical experts have also urged the public not to circulate unverified reports or exaggerated case counts, emphasizing that only two confirmed cases have been validated by national testing laboratories.
A Closer Look at Nipah Virus
Nipah virus (NiV) is a zoonotic pathogen normally transmitted from animals—especially fruit bats—to humans, or through close human-to-human contact. It can lead to fever, severe neurological complications such as encephalitis (brain swelling), and respiratory distress. Fatality rates are high, historically ranging from 40 % to 75 % in infected individuals.
At present, no licensed vaccine or approved antiviral treatment exists for Nipah infection; care is supportive and focused on early detection and isolation.
Why It Matters
While the current outbreak remains limited, the severity of illness and lack of a cure underscore why health systems are alert and why some countries have tightened surveillance at points of entry. WHO continues to monitor the situation and support national responses, but experts say the risk to the broader region and global public health is low at this stage.
Published: 30 Jan 2026, 12:05 pm IST
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