Laboratory of Molecular Diagnosis and Hematology, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-901, Brazil.
Graduate Program in Animal Biology, Instituto de Biologia, Universidade Federal Rural do Rio de Janeiro, Seropédica, 23890-000, Brazil.
Sci Rep. 2023 Aug 12;13(1):13129. doi: 10.1038/s41598-023-39629-x.
Significant pathogens that have resurfaced in humans originate from transmission from animal to human populations. In the Americas, yellow fever cases in humans are usually associated with spillover from non-human primates via mosquitoes. The present study characterized the prevalence of the yellow fever vector Haemagogus leucocelaenus in Rio de Janeiro, Brazil. The Atlantic Forest fragment chosen is an area of translocation of the golden lion tamarin (Leontopithecus rosalia), where 10 ovitraps were installed to collect mosquito eggs in Fazenda Três Irmãos, at Silva Jardim city, from March 2020 to October 2022. A total of 1514 eggs were collected, of which 1153 were viable; 50% belonged to medically important mosquito species and 24% to the yellow fever vector species, Hg. leucocelaenus. The months of December 2020 (n = 252), November 2021 (n = 188), and January 2022 (n = 252) had the highest densities of this vector. Haemagogus leucocelaenus was positively correlated with temperature (r = 0.303) and humidity (r = 0.48), with eggs hatching up to the 15th immersion with higher abundance of females. Implementing mosquito monitoring for arbovirus activity can help protect both the golden lion tamarin and human populations from the threat of arbovirus transmission.
重新出现的人类重大病原体源于动物向人类种群的传播。在美洲，人类中的黄热病病例通常与通过蚊子从非人类灵长类动物溢出有关。本研究对巴西里约热内卢的黄热病媒介埃及伊蚊的流行情况进行了特征描述。选择的大西洋森林片段是金狮狨（Leontopithecus rosalia）的迁移区，在 Silva Jardim 市的 Fazenda Três Irmãos 安装了 10 个诱卵器，以收集 2020 年 3 月至 2022 年 10 月的蚊子卵。共收集到 1514 个卵，其中 1153 个是活卵；50%属于医学上重要的蚊子种类，24%属于黄热病媒介种类，即 Hg. leucocelaenus。2020 年 12 月（n=252）、2021 年 11 月（n=188）和 2022 年 1 月（n=252）这几个月该媒介的密度最高。Haemagogus leucocelaenus 与温度（r=0.303）和湿度（r=0.48）呈正相关，在第 15 次浸泡时孵化出的卵数量更多，雌性数量也更多。实施蚊虫监测以了解虫媒病毒活动情况，有助于保护金狮狨和人类免受虫媒病毒传播的威胁。
