<s>[INST] What is dengue fever?​ [/INST] Dengue fever is a mosquito-borne viral infection transmitted by the Aedes mosquitoes, which normally bites during the day time. In Africa, dengue fever outbreaks in 2013 have been reported in Angola, Kenya and Tanzania. Globally, outbreaks have also been reported in several Asian (including Thailand, Vietnam, Cambodia, Hong Kong), South American countries (including Brazil, Mexico, Venezuela) and India.  Nevertheless, the dengue virus is endemic to more than 100 countries worldwide and more than a million cases are reported to the World Health Organization annually.   There is no dengue fever transmission in South Africa and currently should be suspected in patients presenting with the sign and symptoms of dengue fever and a travel history to affected countries. Source: SASTM ORG. Link: https://sastm.org.za/2023/03/16/dengue-faq/. Field: Infectious Disease. Disease: Dengue </s>