Tuesday 8 August 2023

Dengue Fever : What should you know ?

Dengue: Symptoms, Prevention, and Treatment**

**Author: Dr. Koushik Debnath, MD (Clinical Microbiology and Infectious Diseases)**

Dengue fever is a viral illness that continues to be a major global health concern, particularly in tropical and subtropical regions. As a specialist in Clinical Microbiology and Infectious Diseases, I find it crucial to shed light on this disease, its symptoms, preventive measures, and available treatments. In this article, we will delve into the nuances of dengue and provide essential information for both the general public and medical professionals.

**Introduction to Dengue:**

Dengue is caused by the dengue virus, which is primarily transmitted to humans through the bites of infected Aedes mosquitoes, particularly Aedes aegypti and Aedes albopictus. This virus is classified into four serotypes, labeled as DEN-1, DEN-2, DEN-3, and DEN-4. Once infected, individuals can develop mild to severe symptoms.

**Symptoms and Clinical Presentation:**

Common symptoms of dengue include high fever, severe headache, joint and muscle pain, skin rash, and mild bleeding. In severe cases, dengue can progress to dengue hemorrhagic fever (DHF) or dengue shock syndrome (DSS), which can lead to bleeding, organ impairment, and even death if not promptly managed.

**Preventive Measures:**

1. **Mosquito Control:** The primary method of preventing dengue is to control mosquito populations. This can be achieved by eliminating standing water where mosquitoes breed, using mosquito nets, and applying insect repellents.

2. **Personal Protection:** Wearing long-sleeved clothing and using mosquito repellents when outdoors can significantly reduce the risk of mosquito bites.

3. **Community Efforts:** Community engagement in maintaining clean surroundings and preventing water accumulation is crucial in minimizing mosquito breeding sites.

**Diagnosis and Treatment:**

Diagnosing dengue involves clinical evaluation, combined with laboratory tests like serological tests and molecular assays. Early detection is essential to prevent severe complications. Unfortunately, there is no specific antiviral treatment for dengue. Management primarily involves supportive care, including hydration, fever-reducing medications, and monitoring for complications.

**Future Directions:**

Efforts to combat dengue include ongoing research into vaccine development. The first dengue vaccine, Dengvaxia, has been approved for limited use in certain regions, but its efficacy and safety have been subjects of debate. Further research is needed to develop effective vaccines that protect against all serotypes.


Dengue remains a significant public health challenge, particularly in regions where Aedes mosquitoes thrive. Education, mosquito control, and community engagement play pivotal roles in preventing and managing dengue outbreaks. As a specialist in Clinical Microbiology and Infectious Diseases, my aim is to create awareness about this disease and emphasize the importance of collaborative efforts in its prevention and control.

Remember, staying informed and taking proactive measures can greatly contribute to reducing the impact of dengue on individuals and communities.