What is the carrier of dengue hemorrhagic fever?
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.
What microorganism causes Dengu?
The pathogen Dengue is caused by a virus of the Flaviviridae family, Flavivirus genus which includes viruses such as yellow fever, West Nile and tick-borne encephalitis.
Does Aedes aegypti cause dengue?
The Aedes aegypti mosquito can transmit the viruses that cause dengue fever. The female mosquito lays eggs in containers with water and plants near the home.
What is the mosquito population?
Timothy C. Winegard. The mosquito is a nearly universal animal. We have 110 trillion across nearly all of the planet, and we’ve had them for over 100 million years.
What are the 4 types of dengue fever?
Dengue is caused by a virus of the Flaviviridae family and there are four distinct, but closely related, serotypes of the virus that cause dengue (DENV-1, DENV-2, DENV-3 and DENV-4). Recovery from infection is believed to provide lifelong immunity against that serotype.
What happens if you get bitten by an Aedes mosquito?
Dengue fever is transmitted to humans via the bite of an infective Aedes mosquito. A mosquito becomes infected after it takes a blood meal from a dengue-infected person. It becomes infective after an extrinsic incubation period of 8 to 12 days. The mosquito then remains infective for the rest of its lifespan.
What is the common name of Aedes aegypti?
the yellow fever mosquito
Aedes aegypti bears the common name “the yellow fever mosquito,” although, today, it is of more concern as the major vector of dengue, chikungunya, and, most recently, Zika viruses.
Which country has no mosquito?
In almost every country in the world, mosquitoes are a menace. Everywhere but Iceland, that is. Iceland is one of the few habitable places on the planet that is mosquito-free, and nobody really seems to know why.
How is dengue hemorrhagic fever diagnosed?
If an infection is suspected, you will get a blood test to check for the dengue virus. During a blood test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.
What are the symptoms of dengue hemorrhagic fever?
Dengue fever causes a high fever — 104 F (40 C) — and any of the following signs and symptoms:
- Muscle, bone or joint pain.
- Pain behind the eyes.
- Swollen glands.
What is the difference between dengue fever and dengue hemorrhagic fever?
DHF is a more severe form of dengue. Initial symptoms are the same as dengue but are followed by bleeding problems such as easy bruising, skin hemorrhages, bleeding from the nose or gums, and possible bleeding of the internal organs. DHF is very rare.
How do you treat dengue hemorrhagic fever?
- See a healthcare provider if you develop a fever or have symptoms of dengue.
- Rest as much as possible.
- Take acetaminophen (also known as paracetamol outside of the United States) to control fever and relieve pain.
- Drink plenty of fluids to stay hydrated.
Will I definitely get dengue if bitten by Aedes?
Foremost, you need to bust the dengue myth that every mosquito bite will cause dengue. Only the female Aedes aegypti mosquitoes can spread the dengue virus and in fact, these mosquitoes can transfer the infection only when they themselves are infected. So, no need to panic after each mosquito bite.
How do I know if I have an Aedes mosquito bite?
The only way to differentiate between a dengue mosquito bite and a normal mosquito bite is that that a dengue mosquito bite is much redder and itchy compared to a normal mosquito bite.
Why is it called Aedes aegypti?
Aedes (Greek for “unpleasant”) aegypti is the principal vector of several human diseases, including chikungunya, dengue, yellow fever, and Zika.
Which country has the most mosquitoes?
So, Where Are the Worst Places in the World for the Mosquito? It is believed Brazil, Indonesia, Malaysia, and Thailand have the highest numbers of mosquito species. Australia, Indonesia, the Philippines, and Brazil are recorded to have the highest number of endemic species.
Does USA have mosquitoes?
Over 200 types of mosquitoes live in the continental United States and US territories; of these 200, about 12 types spread germs that can make people sick. Other mosquitoes bother people and are considered nuisance mosquitoes. In general, nuisance mosquitoes do not spread germs.
What are the symptoms of dengue hemorrhagic fever (DHF)?
Dengue virus infection may remain asymptomatic or manifest as nonspecific viral infection to life threatening dengue hemorrhagic fever (DHF)/dengue shock syndrome (DSS). Patients with DHF/DSS have fever, hemorrhagic manifestations along with thrombocytopenia and hemoconcentration. Thrombocytopenia a …
What is severe dengue?
Severe Dengue: Dengue Hemorrhagic Fever and Dengue Shock Syndrome DHF is a vascular leak syndrome and is primarily a disease of children under the age of 15 years, although it can and does occur in adults. 37 It is characterized by sudden onset of fever, usually of 2–7 days’ duration, and a variety of nonspecific signs and symptoms.
What are the signs and symptoms of dengue reinfection?
A similar syndrome is seen in mice with persistent infections with LCMV. Dengue hemorrhagic fever (Chapter 389) and dengue shock syndrome are forms of dengue reinfection characterized by capillary leakage and hemorrhage.
What are the dynamics of hemoglobin levels in dengue fever?
Dynamics of hemoglobin levels in patients with dengue fever according to age group (< 15 years and ≥ 15 years) and clinical form Regarding Ht, we found homogeneous and lower values in the under 15-year-old age group for all forms but with a greater variation in DHF (Figure 3). Open in a separate window Figure 3