• Published on: Oct 22, 2021
  • 3 minute read
  • By: Second Medic Expert

What Are The Symptoms, Causes & Treatment Of Dengue Fever?

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What are the Symptoms, causes & treatment of Dengue fever?

Dengue fever is a mosquito-borne viral infection that's becoming more common in many parts of the world.

A severe flu-like illness with muscle and joint pain, rash, headaches, nausea, and vomiting can be accompanied by a variety of other symptoms which include inflammation of the eye or gums causing pus build-up or tooth loss. Visiting a doctor is advisable if the headache lasts for more than 3 days; there are sudden meteors in vision;

The virus lives inside mosquitoes and is transmitted to humans through their saliva when they take a blood meal from an infected person. Vivax mosquitos tend to bite both day time and night time, while Aegypti mosquito prefers only night time

Dengue fever is caused by the dengue virus, which is spread to people through mosquito bites.

The four types of dengue virus cause similar illnesses however the risk for severe disease and death increases with successive infections due to how it affects your body's immune system. The most common symptoms include high fever, headache, sore throat, nausea or vomiting (only in some cases), fatigue or lack of strength (maybe unrelated), pain behind the eyes (called "photophobia"), and rashes on arms, legs buttocks.

  • Flu-like symptoms
  • Rash on the wrists, arms, legs & trunk of the body.
  • Joint pain or muscle pain
  • Nausea

Treatment: Pain medications and fluids to maintain adequate hydration. Low platelet count requires blood transfusion for carriers of thalassemia. Low platelet count is treated with plasma exchange therapy or immune globulin infusions. Dengue hemorrhagic fever is also treatable but the outcomes are bad if not caught early on. Death rate increases with the severity of dengue infection (DHF). DHF patients need IV fluids, clean water preparation techniques, antibiotics, antiemetics, and antipyretics; ideally in a hospital setting.

Dengue Fever is a viral infection transmitted primarily by mosquitoes. The virus infects the human ribonucleic acid (RNA) and affects platelets which become unstable and may lead to internal bleeding.

Symptoms of dengue fever include the following: high fevers which can reach up to 106 degrees Fahrenheit, headache, pain behind the eyes, joint pains, skin rash that looks like measles, or prickly heat. In some cases, it may be necessary for patients who experience unusual bleeding or persistent vomiting to get fluids intravenously (IV). For severe cases, hospitalization may be necessary with supportive measures such as maintaining fluid levels with IV fluids and careful monitoring of blood pressure.

Very feverish and break out in a rash. Treatment for Dengue Fever is rest, fluids, and aspirin or paracetamol to relieve pain. If someone has a loss of appetite or is unable to keep down fluids, seek medical help right away. Otherwise drink plenty of fluid such as water, cordial lime drinks such as Fanta. Avoid alcohol and caffeine because there can be low blood pressure associated with this illness which will cause more dehydration while worsening the symptoms. Symptoms usually start between 4-7 days after being bitten by an infected mosquito but may start anytime from 14-22 days following a bite from an infected mosquito depending on what type of virus was transmitted that infection period depends on your immune system.

Dengue fever is an infection of the human body by one of four closely related dengue viruses. It's typically carried by mosquitoes, prevalent in tropical and subtropical regions throughout the world. The symptoms which are experienced are fevers, joint pains, severe headache, nausea, at times secondary bacterial infections that can be fatal to sufferers with other pre-existing health conditions. Diagnosis is through blood tests following possible exposure. Prevention involves mosquito control measures such as mosquito repellents and the elimination of mosquito breeding grounds. There is no universally accepted treatment for this particular illness yet though there have been trials done on animals so there might be after all good news for us down the road.

Dengue fever is a mosquito-borne tropical disease. Signs and symptoms may include mild fever, headache, pain behind the eyes, muscle aches, joint pains, nausea, or vomiting. The key to treatment is prevention against mosquitoes through avoidance of mosquito bites and use of insect repellents.

Mild cases usually get better without any specific treatment by 6 to 10 days. Use painkillers for the headache, drink plenty of fluids for persistent vomiting or nausea or other signs that develop after ten days or more that are not improving gradually on their own. Seek immediate medical attention if you have difficulty breathing(especially when accompanied by a cough), your skin is clammy with generalized discomfort("body aches"), unusual bleeding.

There are many symptoms of dengue fever, including headaches, nausea, and vomiting, pain behind the eyes both at rest and with movement. Joint pains are common too. There is no specific way to prevent dengue but prevention can be attempted through controlling mosquito populations in urban areas. There's no specific treatment available for this disease, though once it begins to recede patients can use acetaminophen or nonsteroidal anti-inflammatory drugs (NSAIDs).

The fever is as high as 104 degrees Fahrenheit and causes debilitation, dehydration, abdominal pain and headache. The Dengue virus causes the flu-like illness Dengue Fever. Symptoms include a sudden high fever accompanied by headaches, muscle aches, and extreme tiredness. It might seem like a minor cold but it can be potentially fatal and needs to be treated as an emergency if not diagnosed correctly in time.

This mosquito-borne disease also has far more serious consequences including internal bleeding called dengue hemorrhagic fever that can lead to death from shock or multiple organ failure after subsequent infection with other bacteria or parasites from contaminated surfaces such as water droplets on door handles of public buildings.

Dengue fever is a viral hemorrhagic fever and quickly becomes life-threatening, resulting in an extremely high mortality rate. Symptoms include high fever, skin rash (large red patches), joint pain, headache, nausea and vomiting, muscle and bone aches. Treatment includes keeping fluids up by taking electrolyte drinks such as Pedialyte or Gatorade which supplies the water and sodium your body needs to function properly. Avoid sugar drinks because they can make you sicker if you're not getting enough sugar. Get plenty of rest and lots of hydration for the best results!

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Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Role of Nutrition in Disease Prevention: How Food Choices Shape Long-Term Health

Disease prevention is no longer limited to vaccinations and medical screenings. Modern healthcare increasingly recognises nutrition as one of the most powerful tools for preventing illness before it begins. The role of nutrition in disease prevention is especially important in India, where lifestyle-related diseases account for a large share of premature illness and mortality.

According to the Indian Council of Medical Research (ICMR) and the National Family Health Survey (NFHS-5), poor dietary patterns contribute significantly to rising cases of diabetes, heart disease, obesity and hypertension. Unlike genetic factors, nutrition is a modifiable risk factor, meaning everyday food choices can actively protect health.

 


Why Nutrition Is Central to Disease Prevention

1. Nutrition regulates metabolic health

Balanced diets help maintain:

  • healthy blood sugar levels
     

  • optimal cholesterol balance
     

  • stable blood pressure
     

Disruption in these systems increases disease risk.

2. Nutrition strengthens immunity

WHO highlights that immune function depends heavily on adequate intake of vitamins, minerals and protein.

3. Nutrition controls inflammation

Chronic low-grade inflammation is linked to most lifestyle diseases. Diets rich in whole foods reduce inflammatory markers.

Major Diseases Influenced by Nutrition

Diabetes and Prediabetes

Excess refined carbohydrates and sugar drive insulin resistance.

Preventive nutrition focuses on:

  • whole grains
     

  • fibre-rich vegetables
     

  • adequate protein
     

  • controlled portion sizes
     

ICMR data shows that dietary modification can delay or prevent type 2 diabetes in high-risk individuals.

Cardiovascular Disease

Heart disease remains a leading cause of death in India.

Nutrition impacts:

  • cholesterol levels
     

  • blood pressure
     

  • arterial inflammation
     

Diets low in trans fats and high in fibre significantly reduce cardiovascular risk, as confirmed by WHO and Lancet studies.

Obesity

Obesity increases the risk of multiple chronic diseases.

Preventive nutrition addresses:

  • calorie density
     

  • food quality
     

  • satiety regulation
     

NFHS-5 reports a steady rise in overweight and obesity across age groups.

Hypertension

High sodium intake and low potassium intake contribute to high blood pressure.

Preventive dietary strategies include:

  • reducing processed foods
     

  • increasing fruits and vegetables
     

  • maintaining mineral balance
     

Certain Cancers

Diet influences cancer risk through:

  • antioxidant intake
     

  • fibre consumption
     

  • reduced exposure to carcinogenic compounds
     

WHO estimates that a significant percentage of cancers are preventable through diet and lifestyle changes.

Key Nutrients That Support Disease Prevention

Fibre

Supports gut health, blood sugar control and cholesterol reduction.

Protein

Essential for muscle health, immune function and metabolic balance.

Healthy Fats

Omega-3 fats reduce inflammation and protect heart health.

Micronutrients

Iron, zinc, vitamin D and B vitamins are essential for metabolic and immune regulation.

NFHS-5 highlights widespread micronutrient deficiencies in India, increasing disease vulnerability.

Role of Gut Health in Prevention

The gut microbiome plays a major role in:

  • immune regulation
     

  • inflammation control
     

  • nutrient absorption
     

Fermented foods and fibre-rich diets support healthy gut bacteria, strengthening disease resistance.

 

Why Preventive Nutrition Works Best Early

Nutrition is most effective when applied:

  • before disease onset
     

  • during pre-disease stages
     

  • alongside regular health screening
     

Once disease progresses, nutrition remains supportive but may not reverse damage fully.

Nutrition vs Medication in Prevention

Medication treats disease; nutrition reduces risk.

WHO and NITI Aayog emphasize that:

  • preventive nutrition reduces disease incidence
     

  • lifestyle modification lowers healthcare burden
     

  • early nutrition changes reduce dependency on long-term medication
     

Both approaches work best when combined appropriately.

Workplace and Community Role in Preventive Nutrition

Structured nutrition programs at workplaces and communities:

  • improve awareness
     

  • support behaviour change
     

  • reduce population-level disease burden
     

Lancet studies show that group-based nutrition interventions improve long-term adherence.

 

Common Myths About Nutrition and Disease Prevention

Myth 1: Supplements replace healthy food

Whole foods provide better long-term protection.

Myth 2: Prevention requires extreme diets

Consistency matters more than restriction.

Myth 3: Nutrition only matters after diagnosis

Early nutrition is most effective before disease develops.

Building a Preventive Nutrition Routine

Effective preventive nutrition includes:

  • regular meals
     

  • diverse food groups
     

  • portion awareness
     

  • minimal processed foods
     

  • hydration
     

Small daily choices compound into long-term health benefits.

Long-Term Impact of Preventive Nutrition

Consistent healthy eating leads to:

  • reduced disease risk
     

  • improved energy and productivity
     

  • better immune resilience
     

  • lower healthcare costs
     

  • improved quality of life
     

NITI Aayog identifies nutrition as a cornerstone of sustainable healthcare systems.

Conclusion

Understanding the role of nutrition in disease prevention empowers individuals to take control of their health long before illness develops. Balanced, consistent nutrition reduces inflammation, supports immunity and protects against chronic diseases that burden India’s healthcare system. Preventive nutrition is not about short-term fixes but about building lifelong habits that support health, resilience and longevity.

 

References

  • ICMR – Nutrition and Lifestyle Disease Prevention Reports
     

  • National Family Health Survey (NFHS-5) – Dietary and Metabolic Health Data
     

  • NITI Aayog – Preventive Healthcare and Nutrition Strategy Reports
     

  • WHO – Diet, Nutrition and Chronic Disease Prevention Guidelines
     

  • Lancet – Nutrition and Disease Risk Reduction Studies
     

  • Statista – Dietary Trends and Health Outcomes India
     

  • EY-FICCI – Preventive Healthcare and Nutrition Economics

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