What is the reservoir of dengue virus?

Humans serve as the primary reservoir for dengue. Certain nonhuman primates in Africa and Asia also serve as hosts but do not develop dengue hemorrhagic fever. Mosquitoes acquire the virus when they feed on a carrier of the virus.

Where is the dengue virus found?

Millions of cases of dengue infection occur worldwide each year. Dengue fever is most common in Southeast Asia, the western Pacific islands, Latin America and Africa. But the disease has been spreading to new areas, including local outbreaks in Europe and southern parts of the United States.

Does dengue depend on a wild animal reservoir?

While animals are commonly thought to be the reservoir host for flaviviruses transmitted by Aedes mosquitoes such as Zika virus [18] and yellow fever virus (YFV), there is insufficient evidence suggesting that for urban dengue transmission.

What is the source of infection of dengue?

Dengue fever is transmitted by the bite of an Aedes mosquito infected with a dengue virus. The mosquito becomes infected when it bites a person with dengue virus in their blood. It can’t be spread directly from one person to another person.

What is the meaning of reservoir host?

A host that serves as a source of infection and potential reinfection of humans and as a means of sustaining a parasite when it is not infecting humans.

How many countries are at risk of dengue?

The disease is now endemic in more than 100 countries in the WHO regions of Africa, the Americas, the Eastern Mediterranean, South-East Asia and the Western Pacific. The America, South-East Asia and Western Pacific regions are the most seriously affected, with Asia representing ~70% of the global burden of disease.

Does the dengue virus affect animals?

The only animals known to be affected when bitten by a mosquito infected with dengue fever are monkeys. Other animals do not carry or spread dengue.

Is dengue a zoonotic virus?

Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria. Zoonotic Disease: a disease that can be transmitted from animals to people or, more specifically, a disease that normally exists in animals but that can infect humans. There are multitudes of zoonotic diseases.