Dengue is a viral illness transmitted primarily by the Aedes aegypti mosquito. It is now one of the most rapidly spreading mosquito-borne diseases in the world, present across tropical and subtropical regions including South Asia, Southeast Asia, Latin America, sub-Saharan Africa, and increasingly in parts of southern Europe and the southern United States. Understanding the symptoms, safe home management, and that require hospital care is essential for anyone living in or travelling to affected areas.
How Dengue Spreads
Dengue is not contagious between people. It spreads exclusively through the bite of an infected Aedes mosquito. These mosquitoes breed in standing water — plant pots, discarded tyres, uncovered containers, and blocked drains — and bite primarily during the day. There are four distinct dengue serotypes (DENV-1 to DENV-4); recovery from one does not confer immunity against the others.
Recognising Dengue Symptoms
Symptoms typically appear four to ten days after a mosquito bite and include:
- High (39–40°C), often sudden in onset
- Severe , particularly behind the eyes
- Muscle and — dengue is sometimes called "breakbone fever"
- , vomiting, and loss of appetite
- A flat red that may appear two to five days after the fever starts
- Mild bleeding — easy bruising, nose bleeds, or bleeding gums
Clinical guidance from CDC[1] stresses matching home care to symptom severity and seeking urgent review when red-flag signs appear.
Safe Home Care for Mild Dengue
There is no specific antiviral treatment for dengue. Mild cases are managed at home with:
- Rest — avoid exertion until fever has resolved for at least 48 hours.
- Hydration — drink oral rehydration solution, clear soups, coconut water, or fresh juice frequently. Dengue causes fluid loss through fever and vomiting.
- Fever control — paracetamol (acetaminophen) at recommended doses. Do not use , aspirin, or other — these impair platelet function and increase bleeding risk.
- Mosquito protection — remain under a mosquito net and use repellent to prevent transmitting the virus to mosquitoes that could then infect others.
Prevention
- Eliminate standing water around your home weekly
- Use long-sleeved clothing and DEET-based or picaridin repellents outdoors
- Install and maintain window and door screens
- If travelling to high-risk areas, check whether the dengue vaccine (Dengvaxia) is recommended for your age group and prior infection history
For verification and deeper reading, WHO[2] offers independent, evidence-based information you can cross-check with your own clinician.
References & further reading
Sources cited in this guide. DIMH links to independent medical institutions for verification — not as a substitute for personal medical advice.
- CDC — Denguehttps://www.cdc.gov/dengue/index.html
- WHO — Dengue and severe denguehttps://www.who.int/news-room/fact-sheets/detail/dengue-and-severe-dengue
- NHS — Denguehttps://www.nhs.uk/conditions/dengue/
- NIH — Complementary and integrative healthhttps://www.nccih.nih.gov/
- MedlinePlus — Herbal medicinehttps://medlineplus.gov/herbalmedicine.html
- NIMH — Mental health informationhttps://www.nimh.nih.gov/health
When home care is not enough: chest pain, trouble breathing, confusion, or symptoms that worsen quickly need urgent medical attention.
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