What is the mode of transmission of Wuchereria bancrofti?

MODE OF TRANSMISSION: The disease is usually transmitted through the bite of an infectious mosquito. Overall there are 6 genera and 70 species of mosquitoes responsible for the spread of Wuchereria bancrofti(1). INCUBATION PERIOD: The incubation period is variable and often difficult to determine.

What is the mode of transmission of 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 is the infective stage of filariasis and its mode of transmission?

There the microfilariae develop into first-stage larvae and subsequently into third-stage infective larvae . The third-stage infective larvae migrate through the hemocoel to the mosquito’s prosbocis and can infect another human when the mosquito takes a blood meal .

Which disease is caused by Brugia malayi?

B. malayi is one of the causative agents of lymphatic filariasis, a condition marked by infection and swelling of the lymphatic system. The disease is primarily caused by the presence of worms in the lymphatic vessels and the resulting inflammatory response of the host.

What are the types of microfilaria?

Microfilaria Species

• Wuchereria bancrofti.
• Brugia malayi/timori.
• Loa loa.
• Unsheathed blood microfilariae.
• Unsheathed skin microfilariae.

What are the causes of microfilaria?

Most cases of filariasis are caused by the parasite known as Wuchereria bancrofti. Culex, Aedes and Anopheles mosquitoes serve as vector for W. bancrofti in transmission of the disease. Another parasite called Brugia malayi also causes filariasis is transmitted by the vector Mansonia and Anopheles mosquitoes.

How does wuchereria Bancrofti causes elephantiasis?

Lymphatic filariasis is caused by three different species of worms known as Brugia malayi, Brugia timori and Wuchereria bancrofti. These worms cause damage and inflammation to the lymphatic system. The larval form of the worms is introduced into the human body through the bite of infected mosquitoes.

What is the difference between filariasis and elephantiasis?

Elephantiasis is also known as lymphatic filariasis. It’s caused by parasitic worms, and can spread from person to person through mosquitoes. Elephantiasis causes swelling of the scrotum, legs, or breasts. Elephantiasis is considered a neglected tropical disease (NTD).

What is Wuchereria bancrofti and Brugia malayi?

Parasitology. Lymphatic filariasis is caused by the filarial nematodes of the species Wuchereria bancrofti [Life Cycle], Brugia malayi [Life Cycle] and Brugia timori that are transmitted by the bite of a number of mosquito species such as Anopheles, Culex and Mansonia and Ochlerotatus (5).

Which of the following life cycle stages of Wuchereria bancrofti is infective to man?

Bancrofti develop into first-stage larvae and then into third-stage infective larvae in the human body. The third-stage infective larvae can infect another human when the mosquito takes a blood meal.

What is wuchereria bancrofti and Brugia malayi?

What is the difference between Brugia malayi and Brugia timori?

The microfilariae of Brugia timori are longer and morphologically distinct from those of Brugia malayi and Wuchereria bancrofti, with a cephalic space length-to-width ratio of about 3:1. B….Parasite.

What is the pathophysiology of Wuchereria bancrofti?

(April 2017) Wuchereria bancrofti is a human parasitic roundworm that is the major cause of lymphatic filariasis. It is one of the three parasitic worms, together with Brugia malayi and B. timori, that infect the lymphatic system to cause lymphatic filariasis.

What is Wuchereria bancrofti (Filariworm)?

Wuchereria bancrofti is a human parasitic worm (Filariworm) that is the major cause of lymphatic filariasis.

What is microfilaria of Wuchereria?

Microfilaria of Wuchereria bancrofti (CDC Photo; DPDx) There are three different filarial species that can cause lymphatic filariasis in humans. Most of the infections worldwide are caused by Wuchereria bancrofti. In Asia, the disease can also be caused by Brugia malayi and Brugia timori.

What is the difference between bancrofti and Brugian filariasis?

Rural strains of W. bancrofti are transmitted primarily by Anopheles spp. and Aedes spp. mosquitoes. Brugian filariasis is mainly a rural disease transmitted by Mansonia, Anopheles and Aedes spp. mosquitoes. The periodic form of B. malayi is principally a human parasite, whereas the subperiodic form is zoonotically transmitted in some countries.