Dengue Fever: Causes, Symptoms, Diagnosis and Prevention

Introduction

In recent years, Sudan has faced significant health challenges due to war, economic difficulties, and population displacement. These conditions have contributed to the spread of several infectious diseases, including Dengue fever, which has become a growing public health concern in many regions of the country.

Dengue fever is a viral disease transmitted by mosquitoes and is common in tropical and subtropical countries such as Sudan.

What is Dengue Fever?

Dengue fever is a viral infection caused by the Dengue virus, which is transmitted mainly through the bite of infected Aedes mosquitoes, particularly Aedes aegypti.

Unlike malaria, dengue is caused by a virus rather than a parasite. The disease is common in regions with warm climates and poor mosquito control measures.

Factors Contributing to the Spread of Dengue in Sudan

Climate change and rising temperatures
Population displacement and overcrowding
Poor sanitation and water storage
Increased mosquito breeding sites
Lack of effective mosquito control programs

Symptoms of Dengue Fever

Symptoms usually appear 4–10 days after the mosquito bite. In many cases, symptoms are mild and disappear within a week.

High fever (up to 40°C)
Severe headache
Pain behind the eyes
Nausea and vomiting
Muscle and joint pain
Skin rash
Swollen glands

Severe Dengue (Complications)

Although most cases recover within 7 days, some patients may develop severe dengue, which can be life-threatening.

Danger signs include:

Bleeding from the nose or gums
Blood in vomit or stool
Severe abdominal pain
Rapid breathing
Pale skin and extreme thirst
Severe weakness

Diagnosis

Dengue fever is diagnosed through laboratory tests that detect the virus or antibodies in the blood.

Blood tests
NS1 antigen test
PCR testing in specialized laboratories

Treatment

There is no specific antiviral treatment for dengue fever. Treatment mainly focuses on relieving symptoms and preventing complications.

Rest and adequate hydration
Paracetamol for fever and pain relief
Medical monitoring for severe cases

Patients should avoid medications such as aspirin and ibuprofen because they may increase the risk of bleeding.

Prevention

The best way to prevent dengue is to protect yourself from mosquito bites and reduce mosquito breeding areas.

Use mosquito repell

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