<s>[INST] What causes dengue fever? [/INST] Humans are infected with dengue viruses by mosquito bites from infected Aedes species (Aedes aegypti or Aedes albopictus). Dengue fever is a prevalent source of sickness in high-risk areas, affecting more than half of the world’s population. Source: UJALA CYGNUS. Link: https://ujalacygnus.com/blog_post/frequently-asked-questions-about-dengue-fever/. Field: Infectious Disease. Disease: Dengue </s>