Question

Write any two differences between male and female worms of Wuchereria bancrofti.

Answer 1

Wuchereria bancrofti is a human parasiticroundworm that is the major cause of lymphatic filariasis. It is one of the three parasitic worms, together with Brugia malayiand B. timori, that infect the lymphatic system to cause lymphatic filariasis. These filarial worms are spread by a variety of mosquitovector species. W. bancrofti is the most prevalent of the three and affects over 120 million people, primarily in Central Africa and the Nile delta, South and Central America, the tropical regions of Asia including southern China, and the Pacific islands.[1] If left untreated, the infection can develop into a chronic disease called elephantiasis.[2] In rare conditions, it also causes tropical eosinophilia, an asthmatic disease. No vaccine is commercially available, but high rates of cure have been achieved with various antifilarial regimens and lymphatic filariasis is the target of the WHO Global Program to Eliminate Lymphatic Filariasis with the aim to eradicate the disease as a public-health problem by 2020.[3]

Answer 2

Two differences between male and female worms of Wuchereria bancrofti

Wuchereria bancrofti male worm:

• The Male worm is shorter than the female worm and ranges in size from 40 mm long.
• It has a ventrally curved tail.
• It contains a pair of spicules at its tail.
• It is seen along with female worm in a coiled manner.

Wuchereria bancrofti  female worm:

• Female worms are very larger than the male worm and range from 80-100mm long.
• It has a narrow and pointed tail.
• Spicules are absent in female worms.
• It produces young ones through a process called ovoviviparous.

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