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Chandipura Virus (CHPV): Symptoms, Causes, Transmission, Treatment & Prevention

By Dr. Ritika Singh +2 more

Join Health Talk by PharmEasy on WhatsApp

Introduction

During an outbreak, it is very common for parents to worry if their child suddenly develops fever, vomiting, or any unusual symptoms.

Chandipura virus (CHPV) is a virus that can cause an acute illness, particularly in children. In some cases, it can progress rapidly and be fatal1. Therefore, understanding its symptoms, how it spreads, and when medical care is needed can help families respond without unnecessary panic.

chandipura virus

This blog explains the causes, transmission, symptoms, management, and prevention of Chandipura virus infection.

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What Is Chandipura Virus (CHPV) Infection?

CHPV is a RNA virus classified under the genus vesiculovirus that can cause an acute infection, mainly affecting children. It belongs to the Rhabdoviridae family and is primarily transmitted by the bites of infected sandflies. Although sometimes certain mosquito species may also contribute to its spread1,2.

The infection can range from mild, flu-like symptoms to a severe illness affecting the brain, known as acute encephalitis (AES)2. And because the illness can progress quickly, recognising warning signs and seeking medical care early is important.

Did You Know?

  • First identified in 1965: CHPV was first identified in 1965 in Maharashtra, India, and has since been associated with outbreaks of acute encephalitis, particularly in children2.
  • Mostly affects children: CHPV infection predominantly affects children under 15 years of age, with severe disease potentially progressing rapidly to seizures, coma, and death2.
  • Major outbreak in 2024: Between early June and 15 August 2024, India reported 245 cases of acute encephalitis syndrome and 82 deaths (64 of these cases were confirmed as CHPV infection). WHO described this as the largest CHPV-associated outbreak in India in 20 years3. (Case-fatality ratio is high 56-75%)
  • Ongoing outbreak (2026): Gujarat is currently experiencing a Chandipura virus outbreak during this 2026 monsoon season. As of 10 August 2026, Gujarat’s Health ministry reported 225 suspected cases since 30 June 2026, of which 39 were laboratory-confirmed and 25 deaths were recorded among the confirmed patients. Laboratory testing was completed for 212 of the 225 suspected cases, with results pending for the rest.
  • Rapid progression: In severe cases, illness can progress from fever to neurological symptoms within 48 to 72 hours, highlighting the importance of early recognition and supportive medical care1.

How Does Chandipura Virus Spread?

CHPV is mainly spread through the bite of infected insects. The virus does not usually spread directly from one person to another and is strictly vector-borne. Here are some ways that this virus can spread4:

  • PRIMARY VECTORS: Female Sandflies are considered an important vector for CHPV. An infected sandfly can transmit the virus when it bites a person.
  • SECONDARY VECTORS: Mosquitoes may also transmit this virus. Certain mosquito species (including Aedes) have been implicated as possible vectors.
  • Ticks are also considered potential vectors for CHPV.

What Causes Chandipura Virus Infection?

CHPV infection occurs when a person is bitten by a vector carrying the Chandipura virus. Common culprits include4:

  • Infected sandflies
  • Infected mosquitoes
  • Favourable environmental conditions (monsoon)-Damp conditions, cracks in mud walls, unpaved floors, and livestock shelters provide ideal breeding conditions.

Symptoms of Chandipura Virus

CHPV infection can begin suddenly with fever and other general symptoms, then progress rapidly to neurological symptoms. Incubation Period for CHPV infection is 24-48 hrs. Initial symptoms of Chandipura virus include4,5:

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It may then progress to more severe symptoms like4,5:

  • Confusion
  • Changes in behaviour (like irritability or lethargy)
  • Seizures (convulsions)
  • Altered sensorium
  • Neck stiffness
  • Loss of consciousness or coma
  • Encephalitis (inflammation of the brain)
  • Multi-organ involvement
  • Respiratory distress

How is Chandipura Virus Diagnosed?

Doctors generally consider the child’s symptoms, illness history, and possible exposure to vectors before ordering specific tests. Diagnoses may include tests like3,6:

  • RT-PCR: Reverse transcription polymerase chain reaction (RT-PCR) detects the genetic material of the virus and can help confirm an acute infection. The virus can be detected in blood, throat swab, CSF.
  • IgM Antibody Capture ELISA (MAC-ELISA): This test detects IgM antibodies produced by the immune system in response to CHPV. It has been used along with RT-PCR to confirm cases during outbreaks.
  • Cerebrospinal fluid (CSF) testing: When encephalitis is suspected, CSF may be collected through a lumbar puncture and sent for laboratory testing, along with serum samples.

Note: Since several infections can cause symptoms similar to Chandipura virus symptoms, doctors may also test for other causes of AES, depending on the clinical situation and local outbreak patterns.

Chandipura Virus vs Common Fever: How Are They Different?

CHPV infection may initially look like a common fever, but it can progress rapidly and cause serious neurological symptoms. The key differences are presented in the table below1,7.

Feature Common Fever Chandipura Virus Infection 
Cause Can be caused by many infections (including common viral or bacterial infections) Caused by CHPV 
Fever Usually the main symptom Fever is often accompanied by other symptoms 
Other symptoms May include tiredness, body aches, headache, cough, or sore throat Headache, vomiting, diarrhoea, and other flu-like symptoms may occur 
Neurological symptoms Usually absent Seizures, altered consciousness, or coma may develop 
Progression Often improves as the underlying infection resolves Can progress rapidly, sometimes within 48 to 72 hours 
Who is commonly affected? People of all ages, depending on the infection Reported predominantly in children under 15 years 
Diagnosis Usually based on symptoms (testing depends on the suspected cause) Requires laboratory testing such as RT-PCR or IgM testing 
Treatment Depends on the underlying cause (many common viral fevers need supportive care) No specific antiviral treatment (early supportive and intensive care is important) 

Treatment of Chandipura Virus

There is currently no specific antiviral treatment or approved vaccine for CHPV infection. So, the management mainly focuses on supportive care and managing complications, particularly when the infection causes encephalitis. Chandipura virus treatment or management options include1:

  • Hemodynamic stability: IV Fluids and electrolytes are carefully given to maintain hydration and circulation.
  • Fever control: Medicines and other supportive measures may be used to control fever.
  • Seizure management: IV Anticonvulsant medicines may be given when seizures or convulsions occur.
  • Management of brain swelling: Patients with encephalitis may require support to control cerebral oedema and other neurological complications.
  • Breathing and intensive care: Severe cases may require oxygen, respiratory support (early elective intubation&mechanical ventilation), close monitoring, or intensive care.

Possible Complications of Chandipura Virus

Most concern around CHPV infection comes from its potential to progress rapidly and affect the brain and nervous system, particularly in children. Possible complications include1,4,8:

  • Encephalitis: Inflammation of the brain can cause neurological symptoms and is one of the most serious complications.
  • Cerebral oedema: Uncontrolled raised Intra-cranial Pressure and brain swelling can occur.
  • Seizures: Convulsions may occur as the infection affects the brain.
  • Breathing difficulties: Severe neurological involvement may impair breathing and require respiratory support.
  • Shock: In severe cases circulatory collapse can occur.
  • Coma: Severe neurological disease can progress to coma.

Note: CHPV infection can also be fatal, particularly when severe encephalitis develops and progresses rapidly.

Can Chandipura Virus Be Prevented?

Since there is currently no licensed vaccine specifically for CHPV, prevention focuses mainly on reducing exposure to infected vectors, particularly sandflies. Practical Chandipura virus prevention measures include1,8:

  • Use insect repellents on exposed skin and wear long-sleeved clothing, particularly in areas where CHPV transmission has been reported.
  • Sleeping under insecticide-treated bed nets can help reduce exposure to biting insects.
  • Indoor Residual Spraying(IRS) in and around dwellings and cattle sheds.
  • Proper waste disposal, sanitation, drainage, and removal of potential insect breeding or resting sites can help reduce vector populations.
  • Sealing crevices, cracks and holes in mud walls and unpaved flooring to remove potential sandfly breeding sites.
  • Remain particularly cautious during periods when vector activity increases, such as the monsoon season.
  • In affected areas, public-health authorities may use indoor residual spraying, fogging, fumigation, or other insect-control measures to reduce vector populations.

Note: There is currently no specific vaccine or proven preventive medicine for CHPV, so reducing contact with infected vectors remains the key prevention strategy.

Myths vs Facts About Chandipura Virus

There can be confusion and fear around CHPV, especially during outbreaks. So, knowing what is true can help people take sensible precautions without unnecessary panic.

Myth Fact 
CHPV spreads easily from person to person. CHPV is primarily a vector-borne infection. There is no established evidence of routine human-to-human transmission1
Only children can get CHPV virus. Children (particularly those under 15 years) have been disproportionately affected in reported outbreaks, but CHPV infection is not exclusively limited to children9.
A mosquito bite always causes CHPV infection. A bite does not automatically mean infection. CHPV transmission requires exposure to a virus-carrying vector and is more commonly associated with infected sandflies1.
There is a specific medicine that cures CHPV. There is currently no established specific antiviral for CHPV. Management is mainly supportive and focuses on managing complications1.
A child with fever can always be monitored at home. Fever accompanied by seizures, confusion, reduced consciousness, or other neurological symptoms that requires urgent medical care4

When Should You Consult a Doctor?

CHPV infection can progress rapidly, particularly when it affects the brain. You should seek urgent medical care if a child with fever develops8:

  • Seizures or convulsions
  • Unusual drowsiness or reduced responsiveness
  • Loss of consciousness or coma
  • Severe headache or neck stiffness
  • Altered sensorium
  • Weakness, reduced muscle strength, or hemiparesis
  • Impaired balance or vertigo
  • Photophobia
  • Difficulty speaking (dysarthria)
  • Blurred vision
  • Breathing irregularities or prolonged gasping
  • Vomiting, particularly when accompanied by neurological symptoms

Conclusion

CHPV is a rare but serious viral infection that can particularly affect children and may progress rapidly to neurological complications such as encephalitis and seizures. Therefore, recognising early symptoms and seeking medical care is important, especially when fever is accompanied by neurological changes.

Since there is currently no licensed vaccine or specific antiviral treatment, protective measures against insect bites, maintaining good environmental sanitation, and following public-health advice during outbreaks remain key preventive measures that parents should follow.

Also Read: What Is Hantavirus? Symptoms, Causes, & Effective Prevention

Frequently Asked Questions (FAQs)

Is Chandipura virus a type of rabies?

CHPV and rabies virus are different viruses, although both belong to the Rhabdoviridae family1,10.

Is there a vaccine for Chandipura virus?

Currently, no licensed vaccine is available specifically for CHPV. Vaccine candidates are still under research and development1,3.

Can the Chandipura virus spread from person to person?

CHPV is primarily vector-borne, with transmission is associated mainly with infected sandflies. There is no established evidence of routine person-to-person transmission1.

Who is most at risk for Chandipura virus?

Children (particularly those under 15 years of age) have been commonly affected during reported outbreaks1,4.

How long does the Chandipura virus infection last?

CHPV can progress very rapidly. Fever generally persists for around 2 to 3 days, while neurological involvement may develop within 48 to 72 30 hours of fever onset in severe cases8. Therefore, immediate medical attention is necessary.

Is the Chandipura virus curable?

There are currently no specific antivirals proven to cure CHPV. So, management is primarily supportive and focuses on managing symptoms and complications, particularly neurological complications1.

References

  1. Akingbola A, Adegbesan A, Adegoke K, et al. Chandipura Virus Resurgence in India: Insights Into Diagnostic Tools, Antiviral Development, and Public Health Implications. Glob Health Epidemiol Genomics. 2025;2025:1015031. doi:10.1155/ghe3/1015031. https://onlinelibrary.wiley.com/doi/full/10.1155/ghe3/1015031
  2. Padhi A, Agarwal A, Mishra P, et al. Re-emerging Chandipura vesiculovirus: A cause of concern for global health. VirusDisease. 2024;35(3):385-399. doi:10.1007/s13337-024-00896-5. https://pubmed.ncbi.nlm.nih.gov/39464728/
  3. Acute encephalitis syndrome due to Chandipura virus, India. World Health Organization. Accessed August 9, 2026. https://www.who.int/emergencies/disease-outbreak-news/item/2024-DON529
  4. Mohapatra P, Balaraman AK, Mehta R, Rawat P, Sah S, Satapathy P. Chandipura virus: A looming threat to children in India. New Microbes New Infect. 2024;62:101503. doi:10.1016/j.nmni.2024.101503. https://pmc.ncbi.nlm.nih.gov/articles/PMC11528222/
  5. Van Ranst M. Chandipura virus: an emerging human pathogen? Lancet Lond Engl. 2004;364(9437):821-822. doi:10.1016/S0140-6736(04)16995-X. https://www.researchgate.net/publication/8362995_Chandipura_virus_An_emerging_human_pathogen
  6. Tumani H, Petereit HF, Gerritzen A, et al. S1 guidelines “lumbar puncture and cerebrospinal fluid analysis” (abridged and translated version). Neurol Res Pract. 2020;2:8. doi:10.1186/s42466-020-0051-z https://pmc.ncbi.nlm.nih.gov/articles/PMC7650145/
  7. Pappas DE. The Common Cold. Princ Pract Pediatr Infect Dis. Published online 2018:199-202.e1. doi:10.1016/B978-0-323-40181-4.00026-8 https://onlinelibrary.wiley.com/doi/10.1155/2024/1771163
  8. Lodha L, Swaminathan A, John A, et al. Chandipura virus: A comprehensive review. Infect Dis Now. 2025;55(8):105179. doi:10.1016/j.idnow.2025.105179. https://pubmed.ncbi.nlm.nih.gov/41161670/
  9. Kanabar B, Malek S, Piparva K. Temporal Trends in Outbreaks of Chandipura Viral Infection in India: A Systematic Review. Cureus. 16(8):e68097. doi:10.7759/cureus.68097. https://pubmed.ncbi.nlm.nih.gov/39347223/
  10. Shepherd JG, Davis C, Streicker DG, Thomson EC. Emerging Rhabdoviruses and Human Infection. Biology. 2023;12(6):878. doi:10.3390/biology12060878. https://www.mdpi.com/2079-7737/12/6/878
  11. Medical Dialogues. Gujarat records 225 suspected Chandipura cases; death toll rises to 25. Medical Dialogues [Internet]. [cited 2026 Aug 12]. Available from: https://health.medicaldialogues.in/latest-news/gujarat-records-225-suspected-chandipura-cases-death-toll-rises-to-25-176918
  12. Buch KP, Buch PM. 576. Chandipura virus infection: Time to think beyond encephalitis? Open Forum Infect Dis. 2025;12(Suppl 1).014. doi:10.1093/ofid/ofae631.014. https://academic.oup.com/ofid/article/12/Supplement_1/ofae631.014/7986957
  13. Mallick D, Yadav U, Gupta M, Kumar D, Kumar R. The evolving landscape of Chandipura virus: a comprehensive account of outbreaks to recent advances. Virology. https://www.sciencedirect.com/science/article/abs/pii/S0042682225001540
  14. World Health Organization. Acute encephalitis syndrome due to Chandipura virus – India [Internet]. Geneva: World Health Organization; 2024 Aug 23 [cited 2026 Aug 12]. Available from: https://www.who.int/emergencies/disease-outbreak-news/item/2024-DON529

Disclaimer: The information provided here is for educational/awareness purposes only and is not intended to be a substitute for medical treatment by a healthcare professional and should not be relied upon to diagnose or treat any medical condition. The reader should consult a registered medical practitioner to determine the appropriateness of the information and before consuming any medication. PharmEasy does not provide any guarantee or warranty (express or implied) regarding the accuracy, adequacy, completeness, legality, reliability or usefulness of the information; and disclaims any liability arising thereof.

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