[The Epidemiological Studies On The Filariasis In Korea: I. Filariasis In Cheju-Do(Quelpart Island)]
A night blood survey was carried out among inhabitants aged over 1 year from the fifteen villages throughout Cheju-Do (Quelpart Island). Blood films from 2,139 persons were examined and 183(8.6 %) showed microfilariae, the incidences varying according to geographical sources are from 0.8 to 19.5 per cent. All the microfilariae found in this survey were of the nocturnal periodic Brugia malayi. The microfilarial density was 1.9 per cent of blood. The age and sex distributions of microfilaria rate in Cheju-Do were not distinctly different. On the other hand, the intradermal test using Dirofilaria antigen (FPT antigen) and clinical survey of filariasis were also undertaken in same areas of microfilaria survey. Out of 2,449 inhabitants examined 1,434(58.6 %) persons showed positive reaction of skin test, 503(20.5 %) persons have clinical manifestations and 112 (4.6 %) persons showed elephantiasis. It is assumed that Aedes togoi may be the most probable vector of B. malayi in the areas of Cheju-Do.
Seo
Byong Seol
BS
Department of Parasitology and Institute of Endemic Diseases, College of Medicine, Seoul National University, Korea.
Rim
Han Jong
HJ
Seong
Soo Hyun
SH
Park
Yong Hoon
YH
Kim
Byong Chan
BC
Lim
Too Bong
TB