Warning signs of dengue fever and prevention’s

Genesis of Deadly Dengue Fever

Dengue (pronounced as DENG-gey) fever is a disease caused by mosquitoes. It mostly affects the people living in tropical and subtropical areas of the world. Mosquitoes are often described as one of the most harmful animals in the world. They have a strong ability to carry and spread diseases to humans and animals. Mosquito-borne diseases, in general, cause millions of deaths every year.

Aedes aegypti mosquito is the primary vector of chikungunya, dengue, zika, and yellow fever –all such deadly diseases are transmitted to humans by this mosquito. Talking about dengue alone, the global incidence of this disease has shot up in the past few decades, with several tropical countries reporting the severe outbreaks of the disease every year; some of them even reported the outbreak for the first time! Dengue fever is very common in Southeast Asia and the western Pacific islands, but the disease spread its pangs rapidly in Latin America and the Caribbean.

Know the Warning Signs

General Symptoms:

Symptoms of dengue may not occur rapidly in many people; especially; children, and those with their first dengue infection- they have a milder illness than older children and adults. Symptoms occur usually from4 to 7 days after being bitten by an infected mosquito.


Such symptoms, high fever including any two of the following:

  • Joint pain
  • A severe headache
  • Severe eye pain behind eyes
  • Muscle and/or bone pain
  • Rashes on skin
  • Mild bleeding (from nose or gum, petechiae, or easy bruising)
  • Low white blood cell count

Warning Symptoms:

The severe form of dengue fever is called dengue hemorrhagic fever(DHF) which is fatal. It causes severe bleeding, a sudden drop in blood pressure and death.DHF lasts from 2 to 7 days, with general symptoms consistent with dengue fever. The warning signs visible, after the initial symptoms(when the body temperature subsides). If any of the given warning signs appear to seek immediate medical attention from your doctor:

  • Severe abdominal pain or persistent vomiting
  • Red patches on the skin
  • Difficulty in breathing
  • Bleeding from nose or gums and/or vomiting blood
  • Black, tarry stool
  • Drowsiness
  • Pale, cold skin

Patient with DHF has a low platelet count and hemorrhagic manifestations, tendency to bruise easily or have other types of skin hemorrhages, bleeding nose or gums, and possibly internal bleeding.

Preventions of Dengue

Millions of cases of dengue infection, reported each year. In all cases of infection; efforts, should be made to protect the infected person from being bitten by mosquitoes to prevent the infection from spreading to others.

Avoid mosquito-bites inside the house

Install proper nets and protective screens on the windows and doors to keep away mosquitos. Keep, unscreened doors shut. Use mosquito netting over beds at night. Use electric mosquito-repellent mats and liquid vaporizers at home. Arrange for proper disposal of solid waste from home and neighborhood. Cover and regularly clean domestic water storage containers.

Stay protected; when, you step outside

Wear long-sleeved shirts and long pants when outside. Use mosquito repellents made from plant extracts of eucalyptus, citronella, lemongrass, neem. Protect yourself from being, bitten by the mosquitos during the day; especially in morning and evening hours. Repellents such as: DEET (N, N-Diethyl-m-Toluamide) and permethrin give protection against Aedes mosquitoes for several hours.


Reduce the habitat

Don’t give mosquitoes places to breed. The mosquitoes carrying the dengue virus typically live in and breed in standing water that gets, accumulated in such things like empty pots, tubs, overhead tanks, bird baths, flower vases, pet bowls, automobile tires etc. Keep these vessels clean and change their water weekly. Use anti-larval medication for the pools, wells, and ponds. Application of aerosols, mists, and fogs using portable machines and equipment, helpful.


As no vaccine available for the prevention of dengue infection and no specific drugs for its treatment, dengue control is primarily dependent on the control of the Aedes mosquito. Several safety measures need to keep in mind for insecticide use. Above all, the choice of insecticides depends on its safety; monitoring of sub-acute insecticide poisoning and treatment of insecticide poisoning (just in case).

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