Dengue fever [classical dengue]

Dengue fever is a viral infection that you get from the bite of an infected mosquito, specifically the Aedes mosquito. It is often nicknamed "breakbone fever" because the joint and muscle pain it causes can be so intense that it feels like your bones are literally breaking. While it starts in your bloodstream, it affects your entire body, causing a sudden high fever and leaving you feeling incredibly wiped out.

The virus behind this illness belongs to a family called Flaviviridae. Once the mosquito bites you, the virus multiplies in your white blood cells (the cells that fight off infections) and spreads throughout your blood. This triggers a massive wave of inflammation, which is your body's natural defense system trying to fight back. This inflammation is what actually causes the severe body aches, headaches, and skin rashes associated with the disease.

While classical dengue fever is highly uncomfortable and can make you feel miserable for a week or two, most people recover completely with proper rest and hydration. However, it is important to watch out for warning signs of worsening illness, as a small percentage of cases can turn into a more severe, life-threatening form of the disease.