Custódio Jeniffer Michelline de Oliveira, Nogueira Livia Maria Serpa, Souza Daiana Alovisi, Fernandes Magda Freitas, Oshiro Elisa Teruya, Oliveira Everton Falcão de, Piranda Eliane Mattos, Oliveira Alessandra Gutierrez de
Universidade Federal de Mato Grosso do Sul, Programa de Pós-Graduação em Doenças Infecciosas e Parasitárias, Campo Grande, Mato Grosso do Sul, Brazil.
Universidade Federal de Mato Grosso do Sul, Instituto de Biociências, Laboratório de Parasitologia Humana, Campo Grande, Mato Grosso do Sul, Brazil.
Rev Inst Med Trop Sao Paulo. 2019;61:e18. doi: 10.1590/S1678-9946201961018. Epub 2019 Apr 4.
Aedes aegypti and Aedes albopictus are exotic species in the Americas with high epidemiological relevance as they are vectors of many pathogens. This study aimed at understanding the population dynamics of A. aegypti and A. albopictus and the influence of abiotic factors in an endemic area of dengue. The study was conducted in the urban area of Campo Grande, Mato Grosso do Sul, Brazil, over one year. In seven regions of the city, 50 ovitraps were installed in each neighborhood. The development of the larvae was monitored under controlled laboratory conditions until they reached the adult phase. A total of 50,900 eggs of Aedes sp. were collected, 26,073 of which reached adulthood: 25,496 (97.8 %) A. aegypti and 540 (2.1%) A. albopictus. A. aegypti was observed in all months during the study. The highest number of A. albopictus eggs were collected in June, while in August and September, an absence of this species was noted. Abiotic factors such as temperature, humidity and rainfall were responsible for the observed fluctuations in the mosquito population. The presence of A. albopictus in the urban area of the city is concerning because it could become a potential vector for other arboviruses that afflict human populations. The occurrence of these species in Campo Grande reinforces the need for constant entomological and epidemiological surveillance so that informed actions could be taken to decrease potential breeding sites.
埃及伊蚊和白纹伊蚊是美洲的外来物种，由于它们是许多病原体的传播媒介，因此具有很高的流行病学相关性。本研究旨在了解埃及伊蚊和白纹伊蚊的种群动态以及非生物因素在登革热流行地区的影响。该研究在巴西南马托格罗索州大坎普市的市区进行了一年。在该市的七个区域，每个社区安装了50个诱蚊产卵器。在实验室控制条件下监测幼虫的发育，直到它们进入成虫阶段。总共收集了50900枚伊蚊属的卵，其中26073枚发育为成虫：25496只（97.8%）埃及伊蚊和540只（2.1%）白纹伊蚊。在研究期间的所有月份都观察到了埃及伊蚊。6月份收集到的白纹伊蚊卵数量最多，而在8月和9月，未发现该物种。温度、湿度和降雨等非生物因素导致了观察到的蚊虫种群波动。白纹伊蚊在该市市区的出现令人担忧，因为它可能成为困扰人类的其他虫媒病毒的潜在传播媒介。这些物种在大坎普的出现强化了持续进行昆虫学和流行病学监测的必要性，以便能够采取明智的行动来减少潜在的繁殖场所。
