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Wuchereria bancrofti is a filarial (arthropod-borne) nematode (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.
[18] [19] B. malayi infection is endemic or potentially endemic in 16 countries, where it is most common in southern China and India, but it also occurs in Indonesia, Thailand, Vietnam, Malaysia, the Philippines, and South Korea. [11] The distribution of B. malayi overlaps with W. bancrofti in these regions, but does not coexist with B. timori. [2]
Buckley reexamined all the Wuchereria species in 1960, and concluded that the genus should contain only W. bancrofti. He created a new genus Brugia in honour of the original discoverer, thus renaming B. malayi, B. pahangi, and B. patei. [10] In 1977, a new species B. timori was reported from Flores Island in Indonesia. [11]
A search for worm specific antigens was initiated where SXP-1 antigen was recognized to be specific for W.bancrofti filariasis. The antigen was identified after screening the cDNA library of adult worms with serum from both amicrofilaremic and microfilaremic patients.The native SXP-1 antigen was present in extracts of microfilariae and adult ...
Three species of filarial roundworms, all from the Onchocercidae family, cause human lymphatic filariasis: Wuchereria bancrofti, Brugia malayi, and Brugia timori. [1] Tropical pulmonary eosinophilia is a rare syndrome characterised by pulmonary interstitial infiltrates and marked peripheral eosinophilia. [2]
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. timori more closely resembles the symptoms caused by B. malayi and morphologically resembles B. malayi. [5]
Brugia malayi; Brugia timori; Wuchereria bancrofti [7] Three other medically important parasitic species are: Loa loa causes Loa loa filariasis also known as Calabar swelling; Mansonella streptocerca, which causes streptocerciasis, an itchy condition that creates depigmented skin lesions sometimes mistaken for the first signs of leprosy.
Elephantiasis tropica (known as lymphatic filariasis), caused by a number of parasitic worms, particularly Wuchereria bancrofti. More than 120 million people, mostly in Africa and Southeast Asia, are affected. [3] Nonfilarial elephantiasis (or podoconiosis), an immune disease affecting the lymph vessels [citation needed] Leishmaniasis [2]