Nipah Virus Update: WHO Says No Travel Curbs Needed - How To Know If You’re Infected?

The World Health Organization (WHO) has said that the recent Nipah virus cases reported in India pose a low risk of spread, and there is no need for travel or trade restrictions at this stage.

The statement comes after two Nipah virus cases were confirmed in North 24 Parganas district of West Bengal. While some Asian countries have increased health screening at airports, the WHO has clarified that there is no evidence of wider transmission.

According to the global health body, both cases are limited to one district, and there was no travel history while the patients were symptomatic, reducing the chances of the virus spreading to other regions.

Situation in West Bengal: Containment Measures in Place

India has moved quickly to control the situation. Health authorities have identified and quarantined nearly 200 people who came in contact with the infected patients. Officials said all contacts are currently asymptomatic and have tested negative.

The federal health ministry confirmed that strict monitoring and surveillance are ongoing to prevent further spread. The WHO noted that human-to-human transmission has not increased, and the national, regional, and global risk remains low.

What Is the Nipah Virus?

Nipah virus (NiV) is a rare but deadly viral infection. It is classified by the WHO as a high-risk pathogen because there is no approved vaccine or specific treatment.

Human infections are uncommon and usually happen when the virus spreads from animals to people. Fruit bats are the natural carriers of the virus, and infection can occur through contaminated food or close contact with infected animals or people.

Symptoms to Watch Out For

Nipah infection often begins with flu-like symptoms, which makes early detection difficult. According to the Centers for Disease Control and Prevention, symptoms usually appear 4 to 21 days after exposure.

Common early symptoms include:

Fever

Headache

Muscle pain

Extreme tiredness

In some cases, patients may develop breathing problems such as cough or pneumonia. The most serious complication is brain inflammation (encephalitis), which can lead to confusion, seizures, coma, or even death.

How Deadly Is Nipah Virus?

Nipah virus has a high fatality rate, ranging between 40 and 75 percent, depending on the outbreak and virus strain. Survivors may face long-term neurological problems, including seizures and personality changes.

In rare cases, brain infection can return months or even years after recovery.

How Does Nipah Virus Spread?

Nipah virus spreads through:

Direct contact with infected fruit bats
Eating fruit or raw date palm sap contaminated by bats
Close contact with infected animals such as pigs
Human-to-human transmission through bodily fluids during close care
Health experts say person-to-person spread usually occurs among family members or caregivers.

Where Was Nipah Virus First Found?

Nipah virus was first identified in 1999 during an outbreak among pig farmers in Malaysia and Singapore. Since then, outbreaks have occurred mainly in Bangladesh and India, especially in rural areas.

India reported major outbreaks in Kerala starting in 2018, followed by sporadic cases. Cases linked to Nipah or similar viruses have also been reported in the Philippines.

Is There Any Treatment or Vaccine?

There is no proven treatment or vaccine for Nipah virus. Medical care focuses on managing symptoms and supporting patients during complications.

The virus is listed under the WHO's Research and Development Blueprint, which prioritises dangerous diseases that need urgent scientific research.

How to Reduce the Risk of Infection

Health agencies recommend simple precautions:

Avoid eating partially eaten or fallen fruits
Do not consume raw date palm sap
Wash and peel fruits thoroughly
Avoid close contact with bats and sick animals
Use gloves and protective clothing when handling animals
Wash hands regularly after caring for sick people

Authorities stress that awareness and early reporting are key to preventing outbreaks.