Introduction: Why this guide matters
Nipah virus is a serious disease that spreads to humans from fruit bats, which are the natural reservoir. In some outbreaks, pigs have acted as intermediate hosts but the virus can also be transmitted to other animals (such as horses, goats or cows) that come into contact with or consume fruit contaminated by infected fruit bats. Additionally, the virus can spread directly from person to person. It is highly dangerous, with a fatality rate between 40% and 75%. Because early symptoms resemble common flu or respiratory infections, the illness can be easily overlooked until it becomes severe.
As a community health worker (CHW), you are the frontline defence. You must help families recognize the signs early, prevent transmission from animals and food and ensure that suspected cases are handled with extreme care to prevent an outbreak in the community or local clinics.
The power of contextualization and communication
To be effective, you must:
- Use local language: If the community has specific terms for "brain fever" or "the sickness from bats", use these terms to bridge the gap between technical facts and local understanding.
- Speak WITH the community: Listen to their concerns about livestock or traditional food practices (like drinking raw date palm juice). Do not just lecture; solve problems together.
- Manage rumours: Address fears about "cursed" animals or "fake" hospital treatments with empathy. Acknowledge the fear, then calmly provide the facts from health authorities.
- Keep it simple and direct: Focus on high-impact actions i.e. boil juice, wash fruit and wear protective clothing around sick animals/people.
Messages for CHWs
- Target behaviour: Recognizing early symptoms, promoting food safety and animal hygiene and ensuring strict infection control during home care or referral.
- Single overarching communication objective: You confidently explain how Nipah spreads, motivate families to protect food from bats and ensure anyone with sudden fever and confusion is isolated and referred immediately.
- Key message: Stop Nipah now! Protect your food from bats, avoid contact with sick animals and get medical help immediately if someone has a fever, cough or shows signs of confusion.
- Context for CHWs: Transmission to humans occurs through direct contact with infected animals like fruit bats, pigs, horses, goats or cows and by consuming fruits or fruit products (such as raw date palm juice) contaminated by infected fruit bats.
1. Understanding and recognizing Nipah
|
Topic |
Simple message to share |
Key action for CHW |
|
What is Nipah? |
It is a very serious virus spread by fruit bats or other infected animals, such as pigs, horses, goats or cows, or through close contact with an infected person. It can cause severe brain swelling and breathing problems. |
Emphasize that it is much more dangerous than the common flu and requires immediate hospital attention. Always link your suspicion and any identified cases epidemiologically. |
|
Main symptoms |
Watch for a sudden fever, headache and sore throat, often with a cough. In severe cases, people get dizzy, sleepy or confused (signs of brain swelling/encephalitis). |
Action: If a patient shows signs of confusion or seizures, they must be referred to a hospital within 24–48 hours. |
|
Who is at risk? |
Anyone living in a high-risk area or in contact with infected animals, contaminated food or infected people. Health workers and family caregivers are at very high risk. |
Teach caregivers to use gloves and masks (or cloths) when helping anyone with these symptoms. |
2. Guidance for travellers and mobile populations
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Topic |
Simple message to share |
Key action for CHW |
|
Travel history |
If you feel sick after travelling to an area with an outbreak, tell your doctor or health worker exactly where you have been. |
Ask every person with a fever if they have travelled to affected areas or hotspots within the last 14 to 45 days, noting that while symptoms typically appear in 4 to 14 days, incubation periods of up to 45 days have been reported. |
|
Early reporting |
If you develop a fever or feel confused after a trip, do not wait. Go to your nearest health facility immediately. |
Remind the community that symptoms may take a long time to appear; checking travel history and monitoring symptoms can help identify the virus early. |
|
Safe travel |
Avoid buying raw sap or unwashed fruit from roadside vendors while moving through high-risk areas. |
Encourage travellers to use hand sanitizer or wash hands with soap frequently throughout their entire journey and to avoid contact with sick animals. |
3. Immediate care and prevention of spread
|
Topic |
Simple message to share |
Key action for CHW |
|
Immediate action |
If someone has a fever and confusion: Isolate them in a separate room and call for medical help immediately. |
Ensure the family understands that Nipah spreads through close contact with an infected person's secretions and excretions, or through direct contact with sick pigs or their body tissues and by consuming food like raw date palm juice contaminated by fruit bats. |
|
Treatment (supportive) |
There is no vaccine or specific treatment. The hospital provides "supportive care" to help the body breathe and manage the fever. |
Manage expectations: Explain that while there is no specific medicine, hospital care (supportive therapy) is essential for managing the complications. |
|
Stopping human spread |
Avoid unprotected physical contact with the infected person. Wear a mask, wash hands with soap immediately after visiting or providing care. |
Visual inject: Demonstrate proper handwashing and the use of protective barriers (gloves/masks). |
|
When to refer |
Any patient with a fever who begins to act "strange", sleepy or has trouble breathing needs referral to a specialized hospital right away. |
Know your local referral pathway. Nipah can progress to a coma very quickly (24–48 hours). |
4. Prevention: stopping transmission at the source
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Topic |
Simple message to share |
Key action for CHW |
|
Food safety (fruit bats) |
Bats drop saliva and urine on fruit and sap. Boil all date palm juice before drinking. Wash and peel all fruit. Throw away fruit with visible bite marks. |
Help families install bamboo "skirts" or covers over sap collection jars to keep bats out. |
|
Animal safety |
Avoid contact with sick animals (look for a "barking cough" or unusual respiratory signs). If you must handle animals like pigs, horses, goats and cows, wear gloves and protective clothing. |
If many animals are becoming sick or dying, report it immediately to animal health and public health authorities. |
|
One Health approach |
The health of our animals (bats, pigs, horses, goats and cows) is directly linked to our own health. Report any unusual animal deaths or sickness to your supervisor or the local clinic immediately. |
Coordinate with local veterinary officers to monitor animal health and bat colonies in high-risk hotspots. |
5. Linking communication to action
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Prevention action |
Simple message for behaviour change |
CHW action and communication focus |
|
Food hygiene |
Boil it, peel it or toss it. Never drink raw sap or eat fruit that has fallen to the ground. |
Address the difficulty of changing traditional habits (like drinking raw juice) by explaining the risk posed by bat urine. |
|
Safe caregiving |
Protect yourself to protect your family. Use protective barriers if you must touch a sick person. |
Demonstrate how to use local materials (clean cloths) if medical masks/gloves are unavailable. |
|
Quarantine |
Keep the sick person in a separate room and strictly prohibit all visitors. While visiting the sick is a respected cultural tradition, families must be warned that allowing visitors into the isolation area puts the entire community at risk of infection.
|
Explain why isolation is an act of love for the rest of the community to stop the spread of the virus. |
6. Communication, rumours and trust
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Topic |
Simple message to share |
Key action for CHW |
|
Building trust |
“I know this is a scary time. I am here to help you keep your family safe.” |
Be non-judgmental. If a family is afraid to go to the hospital, listen to their reasons before explaining the risks of staying home. |
|
Rumour management |
If people say the disease is a "curse", say: "I understand this is frightening. Doctors have found the virus in bat droppings; we can stop it by boiling our juice." |
Always link the "why" to a simple, actionable step. Never dismiss traditional beliefs; pivot them toward safety. |
|
Reporting |
"Early reporting saves lives". If you see a cluster of fevers in one house or neighbourhood, tell your supervisor immediately. |
Maintain a direct line of communication with your clinic to trigger an early response. |
Summary for the CHW
Nipah virus is a severe but preventable zoonotic disease requiring rapid community-level detection and response. Early symptoms include fever, headache, myalgia, vomiting and sore throat, which may rapidly progress to dizziness, altered consciousness, acute encephalitis (“brain fever”). Some patients may develop severe respiratory distress, seizures and coma within 24–48 hours. CHWs should prioritize immediate referral of any suspected case to a health facility, as delays significantly increase mortality risk. Community isolation should only be a temporary measure while arranging urgent transport. Promote food safety by advising communities to boil raw date palm sap, wash fruit thoroughly and avoid those contaminated by bats. Reinforce infection prevention through hand hygiene and minimizing exposure to bodily fluids during caregiving. Communicate risk with empathy to reduce stigma, encourage early care-seeking and prevent onward transmission.
Related links
Epidemiological bulletin. New Delhi: WHO South-East Asia Regional Office; 2026 (https://cdn.who.int/media/docs/default-source/searo/whe/wherepib/2026_02_searo_epi_bulletin.pdf).
Nipah virus infection. New Delhi: WHO South-East Asia Regional Office; 2026 (https://www.who.int/southeastasia/outbreaks-and-emergencies/nipah-virus).
Sources
Nipah virus. Geneva: World Health Organization; 2026 (https://www.who.int/news-room/fact-sheets/detail/nipah-virus).
Technical brief: Enhancing readiness for a Nipah virus event in countries not reporting a Nipah virus event. Geneva: World Health Organization; 2024 (https://www.who.int/publications/i/item/9789290211273).
