<s>[INST] What is dengue fever? [/INST] Dengue fever is a mosquito-borne viral infection that continues to rapidly spread worldwide. It's known to cause a wide spectrum of disease, ranging from an infection that is nearly or completely asymptomatic to severe flu-like symptoms. In less common cases, some people may develop severe dengue, which can be fatal when not managed appropriately.

Dengue is common in 129 countries, particularly in Asia where the tropical and sub-tropical climates are fertile grounds for the Aedes mosquito – the chief transmitter of the disease. According to the World Health Organisation, there are an estimated 100 – 400 million infections each year. As of late, Singapore has seen a steadily increasing number of dengue cases. In fact, the National Environment Agency warns of an increased risk of dengue cases in the warmer months ahead. Source: PARKWAY EAST.COM. Link: https://www.parkwayeast.com.sg/health-plus/article/things-to-know-about-dengue. Field: Infectious Disease. Disease: Dengue </s>