Maciel-de-Freitas Rafael, Eiras Alvaro E, Lourenço-de-Oliveira Ricardo
Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil.
Cad Saude Publica. 2008 Dec;24(12):2747-54. doi: 10.1590/s0102-311x2008001200003.
Population size and daily survival rates of disease vectors are important determinants of vectorial capacity. A mark-release-recapture experiment was conducted in a dengue endemic urban neighborhood of Rio de Janeiro, Brazil, to estimate population size, survival rate and vectorial capacity of Aedes aegypti females using back-pack aspirators and gravid sticky traps (MosquiTRAP). Estimations of the gravid female population size were different when using data gathered from just the MosquiTRAP (3,505 individuals) or aspirator (1,470). However Ae. aegypti survival rates and longevity were similar irrespective of the method of capture. Up to 26.3% of released females would be able to survive for more than 10 days, the length of time of the extrinsic incubation period. Vectorial capacity value ranged between 0.01567 and 0.4215 and the basic reproductive number (R0) was estimated to be between 0.0695 and 1.88.
病媒种群规模和每日存活率是媒介能量的重要决定因素。在巴西里约热内卢一个登革热流行的城市社区进行了一项标记释放再捕获实验，以使用背负式吸气器和孕蚊粘性诱捕器（MosquiTRAP）估计埃及伊蚊雌蚊的种群规模、存活率和媒介能量。仅使用MosquiTRAP（3505只个体）或吸气器收集的数据时，对孕蚊种群规模的估计有所不同。然而，无论捕获方法如何，埃及伊蚊的存活率和寿命相似。多达26.3%的释放雌蚊能够存活超过10天，即外在潜伏期的时长。媒介能量值在0.01567至0.4215之间，基本繁殖数（R0）估计在0.0695至1.88之间。
