描述维基百科
Wuchereria bancrofti is a human parasitic roundworm that is the major cause of lymphatic filariasis. It is one of the three parasitic worms, besides Brugia malayi and B. timori, that infect lymphatic system to cause lymphatic filariasis. These filarial worms are spread by a mosquito vector. W. bancrofti is the most prevalent among the three and affects over 120 million people, primarily in Central Africa and the Nile delta, South and Central America, and the tropical regions of Asia including southern China and the Pacific.[1] If the infection is left untreated, it can develop into a chronic disease called elephantiasis.[2] In rare conditions it also causes tropical eosinophilia, an asthmatic disease. Limited treatment modalities exist and no vaccines have been developed.