Is dengue transmitted easily?
An infected mosquito can later transmit that virus to healthy people by biting them. Dengue cannot be spread directly from one person to another, and mosquitoes are necessary for transmission of the dengue virus.
Who is at risk of getting dengue?
Dengue outbreaks are occurring in many countries of the world in the Americas, Africa, the Middle East, Asia, and the Pacific Islands. Anyone who lives in or travels to an area with risk of dengue is at risk for infection.
What are the chances of dying to dengue?
Over 250 000 cases of dengue hemorrhagic fever, mainly in children, are reported to the World Health Organization (WHO) annually, with mortality rates of 1–5% among patients with shock.
Who is the carrier of dengue virus?
The carrier incriminated throughout most endemic areas is the yellow-fever mosquito, Aedes aegypti. The Asian tiger mosquito, A. albopictus, is another prominent carrier of the virus.
Does dengue always have high fever?
When symptoms do occur, they may be mistaken for other illnesses — such as the flu — and usually begin four to 10 days after you are bitten by an infected mosquito. Dengue fever causes a high fever — 104 F (40 C) — and any of the following signs and symptoms: Headache.
How do you contract dengue fever?
Dengue viruses are spread to people through the bite of an infected Aedes species (Ae. aegypti or Ae. albopictus) mosquito. Almost half of the world’s population, about 4 billion people, live in areas with a risk of dengue.
Can dengue be asymptomatic?
Typically, people infected with dengue virus are asymptomatic (80%) or have only mild symptoms such as an uncomplicated fever. Others have more severe illness (5%), and in a small proportion it is life-threatening.
Does dengue go away by itself?
Most cases of dengue fever are mild and go away on their own after about a week. Dengue fever rarely strikes in the United States — the last reported outbreak was in Texas in 2005.
How long is dengue incubation period?
Dengue begins abruptly after a typical incubation period of 5–7 days, and the course follows 3 phases: febrile, critical, and convalescent.