Dengue fever may not cause any noticeable symptoms if it is a mild case. In more severe cases, symptoms will start about four to 10 days after you have been bitten by an infected mosquito. The most common symptoms of dengue fever include:  High fever (up to 106°F or 41.1°C) Headache Muscle, bone, and joint pain Pain behind your eyes Rash Nausea and vomiting Bleeding from your nose and gums (rare) The Aedes mosquito is the main type of mosquito that spreads dengue fever. Mosquitoes become infected with dengue fever by biting an infected person. The dengue fever is then transmitted to someone else when an infected mosquito bites that person.  The virus is active in the blood of the infected person from day one to seven of the fever phase; therefore, anyone who might be in contact with infected patient's blood (such as a doctor or other heath care worker) can be exposed. Dengue fever may spread from an infected pregnant mother to her fetus, so extra care should be taken by pregnant women in areas where the virus may be present. If you live in or travel to a tropical or subtropical region often, you are at a higher risk of contracting dengue fever. You are also at greater risk of contracting dengue fever if you have been infected before. A previous bout of dengue fever also puts you at risk of developing severe symptoms if you are infected a second time. Many tropical countries in Southeast Asia, the Indian Subcontinent, the South Pacific, the Caribbean, South and Central America, northeastern Australia, and Africa. After 56 years of absence, dengue has also resurfaced in Hawaii.
डेंगू बुखार के सामान्य लक्षण को पहचानें: डेंगू कैसे फैलता है समझें: खतरे के कारण का विचार करें: