What are the example of filarial worm?
Filariasis is a parasitic disease caused by an infection with roundworms of the Filarioidea type. These are spread by blood-feeding insects such as black flies and mosquitoes. They belong to the group of diseases called helminthiases.
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| Filariasis | |
|---|---|
| Specialty | Infectious disease |
What type of worm is a filarial worm?
Filarial worms and their larvae are parasitic thread-like round nematodes that cause a group of tropical infectious disease called Filariasis (Philariasis). The larvae are transmitted to humans through a mosquito bite.
What type of organism is Dracunculus medinensis?
Dracunculus medinensis, or Guinea worm, is a nematode that causes dracunculiasis, also known as guinea worm disease. The disease is caused by the female which, at up to 80 centimetres (31 inches) in length, is among the longest nematodes infecting humans.
Is guinea worm a filarial worm?
Dracunculiasis, also called Guinea-worm disease, is a parasitic infection by the Guinea worm, Dracunculus medinensis. A person becomes infected by drinking water containing water fleas infected with guinea worm larvae.
| Dracunculiasis | |
|---|---|
| Usual onset | One year after exposure |
| Causes | Guinea worm-infected water fleas |
Where is filarial worm found?
The adult worms only live in the human lymph system. The lymph system maintains the body’s fluid balance and fights infections. Lymphatic filariasis affects over 120 million people in 72 countries throughout the tropics and sub-tropics of Asia, Africa, the Western Pacific, and parts of the Caribbean and South America.
What is the difference between filariasis and elephantiasis?
Lymphatic filariasis, commonly known as elephantiasis, is a painful and profoundly disfiguring disease. It is caused by infection with parasites classified as nematodes (roundworms) of the family Filariodidea that are transmitted through the bites of infected mosquitos.
What type of pathogen is guinea worm?
Guinea worm disease, a neglected tropical disease (NTD), is caused by the parasite Dracunculus medinensis. The disease affects poor communities in remote parts of Africa that do not have safe water to drink. There is neither a drug treatment for Guinea worm disease nor a vaccine to prevent it.
Why is it called guinea worm disease?
guinea worm disease, also called dracunculiasis or dracontiasis, infection in humans caused by a parasite known as the guinea worm (Dracunculus medinensis).
What is the common name of Dracunculus medinensis?
guinea worm, (Dracunculus medinensis), also called medina worm or dragon worm, member of the phylum Nematoda. The guinea worm, a parasite of humans, is found in tropical regions of Asia and Africa and in the West Indies and tropical South America. A variety of other mammals are also parasitized by guinea worms.
What type of mosquito causes filariasis?
A wide range of mosquitoes can transmit the parasite, depending on the geographic area. In Africa, the most common vector is Anopheles and in the Americas, it is Culex quinquefasciatus. Aedes and Mansonia can transmit the infection in the Pacific and in Asia.
What is the meaning of filarial?
Definition of ‘filarial’
1. belonging to the genus Filaria and allied genera of the family Filariidae. 2. Pathology. pertaining to or noting infection by filariae.
What are the types of filariasis?
There are 3 types of these thread-like filarial worms: Wuchereria bancrofti, which is responsible for 90% of the cases. Brugia malayi, which causes most of the remainder of the cases. Brugia timori, which also causes the disease.
What is the causative agent of filariasis?
Causative Agents. The causative agents of lymphatic filariasis (LF) include the mosquito-borne filarial nematodes Wuchereria bancrofti, Brugia malayi, B. timori An estimated 90% of LF cases are caused by W. bancrofti (Bancroftian filariasis).
Is Guinea worms a helminth?
Dracunculiasis, commonly called guinea worm disease (GWD), is transmitted to humans when water fleas belonging to the genus Cyclops are infected with the larvae of the guinea worm, a type of helminth (parasitic worm), and subsequently enter the body through contaminated sources of drinking water.
Where is guinea worm found in the body?
When the adult female worm is ready to release her larvae, approximately 1 year after infection, she moves to a spot just beneath the skin. A blister then forms on the skin where the pregnant adult female worm will eventually emerge. This blister may form anywhere on the body, but usually forms on the legs and feet.
What is the infective stage of Dracunculus?
The larvae penetrate into the haemocoel of the copepods, especially dorsal to the gut, and develop into infective third-stage larvae over 12-15 days (at 25°C). Humans become infected by swallowing infected copepods with drinking water.
What is the vector of Dracunculus medinensis?
Vector Control
The vector for GWD is the copepod. To control this vector, the GWEP puts a measured amount of the approved chemical temephos (ABATE®*) into the water sources that are suspected or known to be contaminated with Guinea worm-infected copepods.
What is the definition of guinea worms?
Definition of Guinea worm
: a slender, parasitic, nematode worm (Dracunculus medinensis) of tropical regions that has an adult female that often attains a length of over 3 feet (91.5 centimeters) and is the causative agent of dracunculiasis.
What disease is caused by guinea worm?
Dracunculiasis, also known as Guinea worm disease (GWD), is an infection caused by the parasite Dracunculus medinensis. A parasite is an organism that feeds off another organism to survive. GWD is spread by drinking water containing Guinea worm larvae. Larvae are immature forms of the worm.
What is the causative agent of guinea worm?
Causal Agent:
Dracunculiasis (guinea worm disease) is caused by the nematode (roundworm) Dracunculus medinensis.
What is the secondary parasite of Dracunculus?
Hosts: Dracunculus medinensis is a parasite of humans, dog, horse, cow, wolf, leopard, monkey, and baboon. Juvenile stages live in fresh water and infect copepods (e.g. Cyclops – water fleas), the secondary host.
What is the common name of dracunculiasis?
Parasites – Dracunculiasis (also known as Guinea Worm Disease) Guinea worm disease, a neglected tropical disease (NTD), is caused by the parasite Dracunculus medinensis. The disease affects poor communities in remote parts of Africa that do not have safe water to drink.
What disease is caused by Guinea worm?
What type of disease is guinea worm?
What are the three major groups of parasites?
A parasite is an organism that lives on or in a host organism and gets its food from or at the expense of its host. There are three main classes of parasites that can cause disease in humans: protozoa, helminths, and ectoparasites.