A92-A99: Arthropod-borne viral fevers and viral haemorrhagic fevers

A97: Dengue

Dengue is a group of conditions caused by the dengue virus, which is transmitted to humans mainly through the bite of an infected mosquito, typically the Aedes aegypti or Aedes albopictus species. The general characteristics of dengue illnesses include a sudden, high fever, severe headache, joint and muscle pain, fatigue, nausea, vomiting, skin rash, and minor bleeding from the nose or gums. The disease has a progression starting with the initial infection, followed by the febrile phase with fever and other symptoms, then either recovery or movement into a more severe phase. In severe cases, it may lead to life-threatening complications like shock, organ failure, or severe bleeding. Dengue illnesses mainly impact the circulatory system and are more commonly seen in tropical and sub-tropical regions around the world.