title: Daily survival and human blood index of Anopheles sinensis, the vector species of malaria in Korea.
abstract: To evaluate the vector efficiency of Anopheles sinensis in transmitting vivax malaria in the northern part of Gyonggi-do, South Korea, daily survival and feeding host preferences were studied during the period of June-October 1999. Ovaries of unfed and freshly fed An. sinensis females were dissected and parity or nulliparity were observed. The parous rates were 75.2% in July, 56.5% in August, 78.5% in September, and 60.0% in October at Gusan-dong, Goyang-si, Gyonggi-do. The average probability of daily survival was 0.890. To determine the host feeding patterns of An. sinensis, outdoor-resting bloodfed mosquitoes were collected, and the sources of the blood meals were analyzed by enzyme-linked immunosorbent assay, using 6 different animal immunoglobulin G antibodies. Out of 305 blood meals tested, 0.7% were positive from humans, 89.8% from bovines, 3.3% from swine, 0.7% from dogs, 1.6% from chickens, and 0.7% from bovines and swine mixed. No blood meals were positive from mice. Though the vector efficiency of An. sinensis was poor because of a low human blood index and a moderate rate of daily survival, vectorial capacity would be high because of high density of the population.
authors.affiliation: Institute of Tropical Medicine, College of Medicine, Yonsei University, Seoul, Korea.
authors.forename: H I
authors.initials: HI
authors.lastname: Ree
authors.forename: U W
authors.initials: UW
authors.lastname: Hwang
authors.forename: I Y
authors.initials: IY
authors.lastname: Lee
authors.forename: T E
authors.initials: TE
authors.lastname: Kim
mesh_terms: D000818:Animals; D000852:Anopheles / Q000502:physiology*; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D006801:Humans; D007303:Insect Vectors / Q000502:physiology*; D007723:Korea; D016780:Malaria, Vivax / Q000635:transmission*; D012621:Seasons; D013696:Temperature