Is dengue RNA or DNA?

Dengue virus (DENV) is the cause of dengue fever. It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus.

What are the 4 types of dengue?

There are four serotypes of dengue viruses, designated as DENV-1, DENV-2, DENV-3, and DENV-4; all are transmitted from human to human through the bite of certain species of Aedes mosquitoes, primarily Ae. aegypti and Ae.

How does dengue virus work?

Dengue is spread through the bite of the female mosquito (Aedes aegypti). The mosquito becomes infected when it takes the blood of a person infected with the virus. After about one week, the mosquito can then transmit the virus while biting a healthy person.

What is the anatomy and physiology of dengue fever?

Dengue fever is a mosquito-borne viral infection which has a sudden onset that follows symptoms such as headache, nausea, weakness, intense muscle and joint pain, swelling of lymph nodes (lymphadenopathy), and rashes on the skin.

What type is dengue?

Dengue is a mosquito-borne viral infection, found in tropical and sub-tropical climates worldwide, mostly in urban and semi-urban areas. The virus responsible for causing dengue, is called dengue virus (DENV). There are four DENV serotypes, meaning that it is possible to be infected four times.

Where is dengue most common?

The disease is common in many popular tourist destinations in the Caribbean (including Puerto Rico), Central and South America, Southeast Asia, and the Pacific Islands. In the United States, local cases and limited spread of dengue does occur periodically in some states with hot, humid climates and Aedes mosquitoes.

What is dengue type 2?

Native Dengue Virus Type 2 is a preparation of viral particles concentrated from tissue culture supernatant. Dengue Virus Type 2 is one of four antigenically distinct yet closely related viral serotypes belonging to the family Flaviviridae known to cause Dengue fever in humans.

Why is dengue called breakbone fever?

Dengue fever is a viral infection spread by Aedes aegypti or Aedes albopictus mosquitoes that may first be suspected if someone was bitten and suddenly spikes a very high fever. It is sometimes referred to as breakbone fever because of the severe muscle, bone, and joint pain it can cause.

Who is prone to dengue?

Anyone who lives in or travels to an area with risk of dengue is at risk for infection. Before you travel, find country-specific travel information to help you plan and pack. Forty percent of the world’s population, approximately 3 billion people, live in areas with risk of dengue.

Is dengue contagious by touch?

Dengue fever is not contagious, so it can’t spread directly from person to person. Since different viruses can cause dengue fever, someone can get the disease more than once.