PLAGIORCHIS-NOBLEI (PLAGIORCHIIDAE) IN AEDES-AEGYPTI - PARASITE ACQUISITION AND HOST MORTALITY IN TRICKLE INFECTIONS

被引：5

作者：

DEMPSTER, SJ ^{[1
]}

RAU, ME ^{[1
]}

机构：

[1] MCGILL UNIV,MACDONALD COLL,INST PARASITOL,21111 LAKESHORE RD,ST ANNE BELLEVUE H0A 1C0,QUEBEC,CANADA

来源：

JOURNAL OF PARASITOLOGY | 1991年 / 77卷 / 01期

关键词：

D O I：

10.2307/3282567

中图分类号：

R38 [医学寄生虫学]; Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ; 100103 ;

摘要：

The prevalence and intensity of experimental infections of Aedes aegypti with the digenean Plagiorchis noblei increased significantly with the level of trickle exposure to cercariae. Daily exposure to doses of 16 cercariae/day yielded a mean infection intensity of 13.0 metacercariae; doses of 1 cercaria/day resulted in only 2.4 metacercariae per infected mosquito larva. The prevalence of infection rose from 46% at an exposure of 1 cercaria/day to 99% at 16 cercariae/day. Host mortality rose concomitantly from 25% to 88%. Host mortality and parasite acquisition were independent of environmental temperatures (21-29 C), despite the fact that developmental times, and consequently the number of daily exposures, were more than 50% greater at the low end of the temperature scale. This may be attributable to low activity of mosquito larvae and the resulting decrease in the number of encounters with cercariae.

引用

页码：111 / 112

页数：2

共 5 条

[1]

Christophers S, 1960, AEDES AEGYPTI L YELL

[2]

DEMPSTER SJ, 1987, J AM MOSQUITO CONTR, V3, P607

[3] THE EFFECTS OF PLAGIORCHIS-NOBLEI METACERCARIAE ON THE DEVELOPMENT AND SURVIVAL OF AEDES-AEGYPTI LARVAE IN THE LABORATORY [J].