Nipah Virus: Risks, Symptoms, and Prevention
Every winter in West Bengal, along with the joy of fairs, picnics and outings. But this winter is bit different from previous years. A silent health concern has hit the news headlines: the Nipah Virus.
With recent alerts surfacing in districts like Nadia and North 24 Parganas, it is natural to feel anxious.
You might be thinking:
Is it safe to eat fruits? Can I drink my favorite Khejur Rash?
What are the symptoms of the Nipah virus?
At Eskag Sanjeevani Hospitals, we believe that fear stems from the unknown. The Nipah Virus is dangerous, yes, but it is also preventable if you understand how it works. Unlike the common flu or COVID-19, Nipah doesn’t spread through casual air in a market. It requires very specific conditions to transmit.
This guide is your family’s shield. We will discuss how the Nipah virus spreads, the symptoms you shouldn’t ignore, and the practical steps you can take to stay safe this season.
Key Takeaways
- Nipah Virus is primarily transmitted in Bengal through the consumption of raw date palm sap (Khejur Rash) contaminated by fruit bats, or through direct contact with infected fluids.
- Early symptoms often mimic the flu (fever, headache), but can rapidly escalate to severe neurological issues like confusion and encephalitis.
- There is no specific cure yet, making prevention (avoiding raw sap) and immediate supportive care at a well-equipped hospital, such as Eskag Sanjeevani, critical for survival.

What Exactly is the Nipah Virus?
The Nipah Virus (NiV) is zoonotic, meaning it jumps from animals to humans. The primary carrier in our region is the large fruit bat, locally known as the “Flying Fox” (Badur). These bats carry the virus without becoming sick themselves, but they shed it through saliva, urine, and droppings.
In West Bengal, outbreaks are almost always seasonal, occurring in winter and spring. This seasonality is directly linked to the harvesting of date palm sap, a local delicacy that, unfortunately, attracts the bats as much as it attracts us.
The Local Link: How Nipah Virus Spread in Bengal
To protect your family, you need to understand the transmission routes. Nipah virus transmission in our state usually happens in three ways:
1. The “Khejur Rash” Connection (Primary Risk)
This is the most critical risk factor for Bengal. During winter, clay pots are hung on date palm trees overnight to collect sap. Fruit bats often visit these trees to drink the sweet sap. In the process, they may urinate or drool saliva into the open pots. If you drink this raw date palm sap (Tari or Neera) the next morning, you are directly ingesting the virus.
2. Contaminated Fruits
Bats love biting into sweet fruits like guavas.
If someone eats a fruit that has been half-eaten or licked by an infected bat, they can contract the Nipah virus infection.
3. Human-to-Human Transmission
This typically happens in close contact. Caregivers or family members who are caring for an infected patient without proper protection (masks and gloves) can contract the virus through body fluids (saliva, vomit, or urine). This is why nosocomial (hospital-acquired) spread is a major concern during outbreaks.
Recognising the Symptoms: When to Seek Help
The incubation period (time from infection to symptoms) ranges from 4 to 14 days. Because the early signs look like a common viral fever, nipah virus infection is often diagnosed late.
Early Warning Signs:
- High Fever
- Severe Headache
- Sore throat and cough
- Muscle pain (Myalgia)
- Vomiting
- Severe Progression (The Danger Zone): If the virus progresses to the brain, it causes Encephalitis (inflammation of the brain).
Watch for:
- Dizziness and drowsiness
- Disorientation or confusion
- Seizures
- Respiratory distress (difficulty breathing)
- Coma (can occur within 24-48 hours)
Note: If you have these symptoms AND have recently consumed raw date palm sap or cared for a sick person, visit the Fever Clinic at Eskag Sanjeevani Hospitals immediately.
Nipah Virus Treatment and Hospital Care
No specific antiviral drugs or vaccines have been discovered for the treatment of the Nipah virus. This makes the virus highly lethal, with a mortality rate ranging from 40% to 75%.
That doesn’t mean that “no cure” does not mean “no hope.”
Treatment focuses on Supportive Care, which saves lives. This includes:
- Respiratory Support: Using ventilators for patients with breathing difficulties.
- Fluid Management: Preventing dehydration and organ failure.
- Symptomatic Relief: Medicines to control fever and seizures.
At Eskag Sanjeevani Hospitals, our Critical Care Units (CCUs) and Isolation Wards are equipped with negative-pressure environments to safely treat Nipah virus infection, ensuring patients have the best chance of recovery while protecting other patients and staff.
Prevention: Your Safety Checklist
Since the Nipah virus treatment is limited, prevention is your best weapon. Follow these “Do’s and Don’ts” strictly during the winter months.
1. Say NO to Raw Date Palm Sap
This is the single most effective step. Do not drink raw Khejur Rash.
Safe Alternative: You can safely consume Nolen Gur (date palm jaggery) or boiled sap. Boiling the sap kills the Nipah Virus instantly.
2. Wash Fruits Carefully
Wash all fruits thoroughly before peeling or eating.
Don’t eat any fruit that looks damaged or it has bite marks, or was found fallen on the ground.
3. Hand Hygiene is Essential
Wash your hands frequently with soap and water, especially after visiting markets.
4. Avoid Animal Contact
Stay away from pigs or bats. If you have fruit trees in your garden, try netting them to prevent bats from accessing them.
Conclusion: Don’t Panic, Stay Informed
The Nipah Virus is a serious threat, but it is a manageable one if we respect nature’s boundaries. By avoiding raw sap and maintaining hygiene, you virtually eliminate the risk.
Your health is our priority. If you or a family member develops a sudden high fever, confusion, or breathing trouble, do not wait. Time is critical. Eskag Sanjeevani Hospitals is here with 24/7 emergency care to support you through any health crisis.
Yes, absolutely. Nolen Gur is made by boiling date palm sap for hours at high temperatures. The Nipah Virus is killed by heat. The risk is only associated with drinking the raw, unboiled sap directly from the tree
No. There is no evidence that Nipah virus transmission occurs through the consumption of chicken, eggs, or fish. It is not bird flu. The virus is primarily carried by fruit bats and, less commonly, by pigs.
Nipah is not airborne in the same way as COVID-19. It does not hang in the air in large open spaces. The Nipah virus spreads mostly through direct contact with infected fluids (saliva, urine) or contaminated food. However, respiratory droplets from an infected patient can be dangerous in close quarters, which is why hospital isolation is required.
The infection is diagnosed using a Real-Time Polymerase Chain Reaction (RT-PCR) test from throat swabs, urine, or blood samples.
If you suspect someone has nipah virus infection, do not try to manage it at home. It requires hospital isolation. If you must interact before the ambulance arrives, wear an N95 mask and gloves, and wash your hands immediately after contact.
Yes. We have dedicated isolation protocols and critical care units designed to handle infectious diseases safely. Our staff is trained in infection control to prevent nipah virus transmission within the hospital.

