The temporal dynamics of Plasmodium density through the sporogonic cycle within Anopheles mosquitoes

被引:15
作者
Dawes, Emma J. [1 ]
Zhuang, Shijie [1 ]
Sinden, Robert E. [2 ]
Basanez, Maria-Gloria [1 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Fac Med, Dept Infect Dis Epidemiol, London W2 1PG, England
[2] Univ London Imperial Coll Sci Technol & Med, Dept Life Sci, Fac Life Sci, London SW7 2AZ, England
基金
英国医学研究理事会;
关键词
Plasmodium; Anopheles; Transmission; Temporal dynamics; Parasite density; Sporogony;
D O I
10.1016/j.trstmh.2009.03.009
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
The impact of parasite density on malaria transmission remains unclear. We investigated sporogony temporal dynamics and the effect of parasite density on these dynamics. A series of experiments was conducted in which cages of mosquitoes were fed on blood containing a range of ookinete densities. Samples of surviving mosquitoes were dissected over time post-feeding to count oocyst and sporozoite numbers. Results reveal a humped (convex) pattern of oocyst numbers and suggest that transition rates between sporogony stages are density dependent. This has implications for the design of parasite-mosquito interface studies and the development of transmission-blocking strategies. (C) 2009 Royal Society of Tropical Medicine and Hygiene. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:1197 / 1198
页数:2
相关论文
共 3 条
[1]   Progression of Plasmodium berghei through Anopheles stephensi is density-dependent [J].
Sinden, Robert E. ;
Dawes, Emma J. ;
Alavi, Yasmene ;
Waldock, Joanna ;
Finney, Olivia ;
Mendoza, Jacqui ;
Butcher, Geoff A. ;
Andrews, Laura ;
Hill, Adrian V. ;
Gilbert, Sarah C. ;
Basanez, Maria-Gloria .
PLOS PATHOGENS, 2007, 3 (12) :2005-2016
[2]  
Sinden Robert E, 2002, Methods Mol Med, V72, P25, DOI 10.1385/1-59259-271-6:25
[3]   Population dynamics of Plasmodium sporogony [J].
Vaughan, Jefferson A. .
TRENDS IN PARASITOLOGY, 2007, 23 (02) :63-70