Here's some information about dengue:

 "Dangu" is most likely a misspelling of "dengue." Dengue is a mosquito-borne tropical disease caused by a virus [Wikipedia dengue fever]. It's fairly common in warm, wet areas of the world, but outbreaks can occur in some parts of the United States as well [MedlinePlus dengue].

Here's some information about dengue:

• Spread: Aedes mosquitos transmit the virus from person to person through bites [CDC dengue].
• Symptoms: Dengue fever can cause flu-like symptoms, including high fever, headache, muscle and joint pain, nausea, vomiting, and a rash [WHO dengue and severe dengue]. Many people don't experience any symptoms at all [Wikipedia dengue fever].
• Treatment: There's no specific medicine to treat dengue, but doctors can recommend pain relievers and fluids to help manage symptoms [WebMD dengue fever].
• Prevention: The best way to prevent dengue is to avoid mosquito bites, especially during the daytime hours when the mosquitos that carry dengue are most active [WHO dengue and severe dengue].

If you're concerned you might have dengue, it's important to see a doctor to get a diagnosis and treatment plan.