What are the sign and symptoms of dengue?

The clinical features of dengue can vary based on the severity of the infection. Common symptoms of dengue fever include:

1. **High Fever:** Sudden onset of a high fever, often reaching up to 104°F (40°C).

2. **Severe Headache:** Intense and persistent headache, often located behind the eyes.

3. **Joint and Muscle Pain:** Severe joint and muscle pain, often described as aching or feeling like a deep bone pain.

4. **Rash:** A rash that usually appears a few days after the fever starts. It can be a flat, red rash or sometimes a raised rash.

5. **Pain Behind the Eyes:** Pain and discomfort, particularly when moving the eyes.

6. **Fatigue:** Profound fatigue and weakness.

7. **Nausea and Vomiting:** Feeling nauseated and vomiting.

8. **Mild Bleeding:** Minor bleeding manifestations, such as nosebleeds or gum bleeding.

In severe cases, dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS) can develop. These conditions are characterized by:

1. **Severe Bleeding:** Hemorrhagic manifestations, such as more significant bleeding from the gums or nose, as well as internal bleeding.

2. **Vascular Leakage:** Increased permeability of blood vessels leading to fluid accumulation in body tissues, resulting in swelling and potential shock.

3. **Organ Involvement:** Liver enlargement and damage, as well as other organ dysfunction.

4. **Shock:** Rapid drop in blood pressure, leading to shock and potentially life-threatening complications.

It’s important to seek medical attention if you experience symptoms of dengue, especially if you notice any signs of severe disease. Early diagnosis and appropriate medical care are essential for managing and treating dengue effectively.