| [epidemiological characteristics and control of filariasis in hunan province]. | of 98 counties or cities in hunan province, 55 were endemic areas of filariasis. the average microfilaria rate was 5.64% (180,046/3,194,102), and the incidence of advanced filariasis, including elephantiasis and hydrocele was 3.29%. the number of filariasis patients in the whole province was estimated to be 1.63 million, comprising 1.25 million of microfilaremia cases, culex fatigans and anopheles hyrcanus sinensis were the major vectors of bancroftian and malayan filariasis respectively in the ... | 1990 | 2208629 |