Dengue Fever Symptoms

Dengue fever is a viral illness that is transmitted by the Aedes mosquito. In Singapore, there were more than 32,000 cases of dengue fever in 2022. One of the most common dengue symptoms is a fever, which can be mistaken for symptoms of other illnesses such as COVID-19 or influenza. In this article, we will discuss the symptoms of dengue fever and how they differ from those of COVID-19 and influenza.

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Dengue Symptoms

The symptoms of dengue fever typically develop within 4 to 7 days after a person has been bitten by an infected mosquito. The most common symptom is a high fever, which can reach up to 40°C and can last for 2 to 7 days. Other symptoms of dengue fever include:

  • Severe headache
  • Joint and muscle pain
  • Fatigue
  • Nausea and vomiting
  • Skin rash
  • Mild bleeding (such as nosebleeds or bleeding gums)

In severe cases, dengue fever can lead to dengue hemorrhagic fever, which can cause severe bleeding, organ failure, and even death. This is more common in people who have been infected with dengue fever before.

How Does Dengue Symptoms Compare to COVID-19 and Influenza?

Fever is a common symptom of dengue fever, COVID-19, and influenza. However, there are some differences in the way that these illnesses present.

COVID-19 and influenza are more likely to cause respiratory symptoms such as coughing, shortness of breath, and sore throat. These symptoms are less common in dengue fever. Additionally, COVID-19 and influenza can cause gastrointestinal symptoms such as diarrhea and abdominal pain, which are not common in dengue fever.

If you are experiencing any of these symptoms, it is important to seek medical attention. Your GP doctor can help determine the cause of your symptoms and recommend appropriate treatment.

Preventing Dengue Fever

The best way to prevent dengue fever is to avoid being bitten by mosquitoes. This can be done by:

  • Wearing long-sleeved shirts and pants
  • Using insect repellent
  • Sleeping under a mosquito net
  • Removing standing water around your home (where mosquitoes breed)

If you live in an area where dengue fever is prevalent, it is important to take these precautions to reduce your risk of infection.


Dengue fever is a serious illness that can cause high fever, joint and muscle pain, and other symptoms. While it shares some symptoms with COVID-19 and influenza, there are some differences in the way that these illnesses present. If you are experiencing any symptoms of dengue fever, COVID-19, or influenza, it is important to seek medical attention. By taking precautions to avoid mosquito bites, you can reduce your risk of contracting dengue fever and other mosquito-borne illnesses.