Chikungunya: Causes, Symptoms, Treatment & More

What is Chikungunya?

Chikungunya fever is an infection caused by the chikungunya virus (CHIKV) and is spread by the bite of infected female Aedes mosquitoes, mainly Aedes aegypti and Aedes albopictus. These mosquitoes are mainly active during the daytime and commonly breed in stagnant water collected in containers, coolers, flower pots, and similar places.

The disease is characterised by sudden fever and painful joints which make simple activities difficult. Chikungunya is usually an acute illness that lasts for a few days to weeks. However, in some people, joint pain and stiffness may continue for months or even years after the infection has cleared.

How Common is Chikungunya in India?

Chikungunya remains a prevalent issue in India, especially during and after the monsoons, due to increased mosquito breeding. This condition has been endemic in many regions of India, and outbreaks have occurred regularly.

According to records from the National Centre for Vector-Borne Disease Control, India reported 45,235 suspected chikungunya cases and 995 confirmed cases up to 30 April 2026. Among the various states in India, Karnataka registered the highest number of suspected cases, which was 13,896. In fact, the country registered 2,13,016 suspected cases and 9,177 confirmed cases of the condition in 2025.

The health experts have also expressed concern about the long-term effects of chikungunya. Studies show that roughly 51 lakh individuals may be exposed to chikungunya in India in the future years, showing the importance of controlling mosquitoes and seeking medical treatment on time.

What are the Symptoms of Chikungunya?

Symptoms of chikungunya usually appear 3 to 7 days after being bitten by an infected mosquito. The illness can range from mild to serious, but the most common signs are a sudden high fever and intense joint pain.

Common symptoms of chikungunya include:

• High Fever: A sudden fever, often above 39°C (102°F), is usually one of the first signs of infection.

• Severe Joint Pain: Pain commonly affects the hands, wrists, ankles, feet, and knees. It often occurs on both sides of the body and can make movement difficult.

• Joint Swelling: Some people develop swelling and stiffness in the affected joints.

• Skin Rash: A red, blotchy rash may appear on the face, trunk, arms, or legs a few days after the fever starts.

• Muscle Pain: Body aches and muscle pain are common during the acute phase of the illness.

• Headache: Many people experience moderate to severe headaches along with fever.

• Fatigue: Weakness and tiredness can continue even after other symptoms begin to improve.

• Nausea and Vomiting: Some patients may experience digestive symptoms, including nausea and vomiting, especially in the early stages of infection.

• Eye Redness: In some cases, redness or irritation of the eyes may occur.

What Causes Chikungunya?

Chikungunya has one direct cause and numerous factors that raise a person's exposure risk.

• Mosquito Bites: The infection occurs when an infected mosquito bites a person and transmits the virus.

• Living in or Travelling to Impacted Areas: Regions with frequent chikungunya outbreaks, including parts of India, Southeast Asia, Africa, and the Americas, carry a higher risk.

• Stagnant Water Around Homes: Water collected in buckets, flower pots, tyres, coolers, and other containers around homes provides ideal breeding grounds for mosquitoes.

• Monsoon and Rainy Seasons: Increased rainfall creates more mosquito breeding sites, increasing the risk of infection.

• Daytime Outdoor Exposure: Unlike many other mosquitoes, Aedes mosquitoes are active during the day, especially in the morning and late afternoon.

• Mother-to-child Transmission: In rare cases, an infected mother can transmit the chikungunya virus to her baby during childbirth.

What are the Complications of Chikungunya?

Most people recover from chikungunya without serious problems. However, in some cases, especially among older adults, newborns, and people with pre-existing health conditions, the infection may result in complications.

Some possible complications of chikungunya include:

• Chronic Joint Pain: Joint pain and stiffness may continue for months or even years after the infection.

• Joint Inflammation (Arthritis): Some people develop persistent joint inflammation, which can affect daily activities and mobility.

• Neurological Complications: Rarely, chikungunya can affect the nervous system, causing conditions such as encephalitis, meningitis, or nerve disorders.

• Heart Problems: In uncommon cases, the virus may cause inflammation of the heart muscle or surrounding tissues.

• Eye Complications: Eye inflammation, blurred vision, and other vision-related problems may occur in some patients.

• Severe Illness in Newborns: Babies infected during childbirth may develop serious complications affecting the brain, heart, or other organs.

• Worsening of Existing Medical Conditions: The infection can aggravate underlying illnesses such as diabetes, heart disease, or high blood pressure.

When Should I See My Healthcare Provider?

Most cases of chikungunya improve with rest, fluids, and supportive care at home. However, you should seek medical attention if you experience any of the following:

• Fever with severe joint pain, especially if you have recently travelled to or live in an area where chikungunya is common.

• Fever along with a skin rash, as this may indicate chikungunya or another mosquito-borne illness such as dengue.

• High fever persists despite taking paracetamol and adequate rest.

• Signs of dehydration include a dry mouth, dizziness, reduced urination, or difficulty keeping fluids down.

• Confusion, excessive drowsiness, or changes in consciousness require immediate medical attention.

• Symptoms in newborns or pregnant women, especially near the time of delivery, are more likely to occur as the chance of complications is higher.

• Symptoms in older adults or people with existing health conditions, such as diabetes, heart disease, or high blood pressure, may be more vulnerable to severe illness.

How is Chikungunya Diagnosed?

Chikungunya is diagnosed by your doctor based on symptoms, medical history, and whether you have visited an area with a chikungunya outbreak recently. An abrupt rise in fever, along with joint pain, is commonly seen with chikungunya.

To confirm, the doctor may suggest one of the following tests:

Since chikungunya shares many symptoms with dengue and Zika, doctors may also order tests for these infections. Identifying the exact cause of illness is important because the treatment and monitoring requirements can differ.

How is Chikungunya Managed?

No specific antiviral medicine is available to cure chikungunya. The emphasis in management is on alleviating symptoms and avoiding dehydration.

Common treatment measures include:

• Rest: Getting proper rest helps the body recover and reduces strain on painful joints.

• Fluids: Drinking enough water, using oral rehydration solutions, and consuming soups and other fluids help prevent dehydration, especially during fever.

• Pain and Fever Relief: Paracetamol is commonly recommended to reduce fever and ease joint and muscle pain.

• Avoid Certain Painkillers: Aspirin and ibuprofen are usually avoided until dengue has been ruled out, as they may increase the risk of bleeding in dengue patients.

• Managing Persistent Joint Pain: If joint pain continues after an acute infection, your doctor may recommend anti-inflammatory medicines, physiotherapy, or other treatments to reduce pain and improve mobility.

• Regular Medical Follow-up: People with severe symptoms, older adults, newborns, and those with prior health conditions may require closer monitoring.

How Does Chikungunya Affect Pregnant Women?

The vast majority of pregnant women with chikungunya have the same symptoms that can occur in non-pregnant adults. The list includes fever, arthritis, rash, and fatigue. In most cases, the infection does not pass from the mother to the baby during pregnancy.

However, risks increase significantly if a woman becomes infected close to delivery. If the virus is present in the mother's bloodstream at the time of childbirth, it can be transmitted to the baby. Infants infected around birth may develop serious complications, like neurological disorders, heart problems, and bleeding issues.

Pregnant women, especially those in the later phase of pregnancy, should take extra precautions to avoid mosquito bites. Moreover, those women who are near their delivery date need to get medical advice if any symptoms of chikungunya are present.

What is the Prognosis for Chikungunya?

The outlook for chikungunya is generally very good. Most people recover completely, with symptoms such as fever and rash improving within 7 to 10 days. Many patients begin to feel significantly better within the first week of illness.

For some people, however, it may take longer to recover. Stiffness, pain, and swelling in the joints may last for several months and may even persist for years after recovery from the infection. This prolonged recovery is more common in older adults, women, and people with existing joint problems.

However, the occurrence of fatal cases is quite rare, but may happen in babies, senior citizens, and individuals having severe health disorders. After recovery from chikungunya infection, one gains lifelong immunity against it.

How Can I Prevent Chikungunya?

You can reduce the risk of chikungunya by following the simple tips below:

• Use Insect Repellent: Apply an EPA-registered repellent on exposed skin whenever you are outdoors, especially during daylight hours.

• Wear Protective Clothing: Always wear long-sleeved clothes and full-length trousers to reduce skin exposure to mosquito bites.

• Use Mosquito Nets and Screens: Sleep under a net and ensure windows and doors have proper screens.

• Eliminate Stagnant Water: Empty and clean flower pots, buckets, tyres, and coolers regularly, as these are prime breeding sites for mosquitoes.

• Cover Water Storage Containers: Covered containers prevent mosquitoes from laying eggs in stored water.

• Avoid Travel to Outbreak Zones if Pregnant: Women in late pregnancy should not travel to areas with active outbreaks.

• Take Extra Precautions During the Monsoon Season: Mosquito breeding increases after rainfall, making prevention measures even more important.

• Protect Babies and Older Adults: These groups are more vulnerable to complications and should be shielded from mosquito exposure as much as possible.

Does Health Insurance Cover Chikungunya?

Yes, chikungunya treatment is often covered under comprehensive health insurance plans in India. These plans reduce the financial burden of treatment by covering hospitalisation and medical care costs.

In addition, various insurers offer vector-borne disease plans that provide a lump-sum payout upon diagnosis of illnesses such as chikungunya. This money can be used to pay for medical expenses and loss of income due to the illness. However, there is a 15-30 day waiting period before claims can be made.

NOTE: Coverage, waiting periods, payout amounts, exclusions, and claim conditions vary from one insurer and policy to another. Always refer to the policy wording for complete details.

How Much Health Insurance Coverage is Needed for Chikungunya Treatment?

Most patients suffering from chikungunya can get treated with outpatient consultation, diagnostic examination, medication, and taking rest at home. In some cases, treatment might need hospitalisation, especially in elderly people, newborn babies, or those who are already affected by some disease. This would make the treatment quite costly.

A medical insurance plan with a sum insured of up to ₹5 lakh is generally sufficient to cover chikungunya-related medical expenses and other common healthcare needs. Families, senior citizens, or those living in metro cities may consider a higher sum insured for broader financial protection.