Epidemiology and Transmission of Human Filariasis of Inland Korea in the Absence of Known Mosquito Vector.
Annual rept. no. 4, 15 May 72-14 May 73,
NATIONAL INST OF HEALTH SEOUL (REPUBLIC OF KOREA) DIV OF PARASITOLOGY
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The present investigation was conducted to elucidate the condition, pattern, and transmission of the human filariasis which is endemic in inland Korea in the absence of known mosquito vector. This report presents the results of the last two years of an investigation conducted in the Yongju area of Kyungsangbuk-do. Microfilaria positive rates among inhabitants were 8.1 from a total of 2,178 person examined. All of the microfilaria mf positive were found infected with Brugia malayi, showing typical nocturnal periodicity. In mosquito population density, Anopheles sinensis was most predominant, and next Culex pipiens pallens. In the vector potential test of B. malayi, A. sinensis was very susceptible and C. pipiens pallens was not susceptible. In animal survey, 4 of 56 cattle examined with night blood were found positive with microfilariae. Under the present progress of such fact-finding survey, together with biting preference of the mosquitos and with other epidemiological data, A. sinensis was considered to play a role in the transmission as the most probable vector species of B. malayi in this area. Modified author abstract
- Medicine and Medical Research