Dataset Information

Detection of the Invasive Mosquito Species Aedes (Stegomyia) aegypti and Aedes (Hulecoeteomyia) koreicus on the Southern Coast of the Crimean Peninsula.

ABSTRACT:

Background

The incidence and area of arbovirus infections is increasing around the world. It is largely linked to the spread of the main arbovirus vectors, invasive mosquito of the genus Aedes. Previously, it has been reported that Aedes aegypti reemerged in Russia after a 50-year absence. Moreover, in 2011, Ae. albopictus was registered in the city of Sochi (South Russia, Black Sea coast) for the first time. In 2013, Asian Ae. koreicus was found in Sochi for the first time.

Methods

Mosquitoes were collected using the following methods: larvae with a dip net, imago on volunteers and using bait traps. The mosquitoes were identified using both morphology and sequencing of the second internal transcribed spacer of the nuclear ribosomal RNA gene cluster.

Results

In August 2016, Ae. koreicus larvae and imago and a single male of Ae. aegypti were found on the southern coast of the Crimean Peninsula, where they were not registered before. Newly obtained DNA sequences were registered in GenBank with the accession numbers MF072936 and MF072937.

Conclusion

Detection of invasive mosquito species (Ae. aegypti and Ae. koreicus) implies the possibility of their area expansion. Intensive surveillance is required at the Crimean Peninsula to evaluate the potential for the introduction of vector-borne diseases.

SUBMITTER: Ganushkina L

PROVIDER: S-EPMC7903358 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Detection of the Invasive Mosquito Species Aedes (Stegomyia) aegypti and Aedes (Hulecoeteomyia) koreicus on the Southern Coast of the Crimean Peninsula.

Ganushkina Lyudmila L Lukashev Alexander A Patraman Ivan I Razumeyko Vladimir V Shaikevich Elena E

Journal of arthropod-borne diseases 20200930 3

<h4>Background</h4>The incidence and area of arbovirus infections is increasing around the world. It is largely linked to the spread of the main arbovirus vectors, invasive mosquito of the genus Aedes. Previously, it has been reported that Aedes aegypti reemerged in Russia after a 50-year absence. Moreover, in 2011, Ae. albopictus was registered in the city of Sochi (South Russia, Black Sea coast) for the first time. In 2013, Asian Ae. koreicus was found in Sochi for ...[more]

PMID: 33644240

Similar Datasets

Project description:BackgroundThe container breeding species belonging to the genus Aedes (Meigen) are frequently recorded out of their place of origin. Invasive Aedes species are proven or potential vectors of important Arboviruses and their establishment in new areas pose a threat for human and animal health. A new species of exotic mosquito was recorded in 2011 in north-eastern Italy: Aedes (Finlaya) koreicus [Hulecoeteomyia koreica]. The aim of this study was to characterize the biology, the environment and the current distribution of this mosquito in north-eastern Italy. Morphological details useful to discriminate this species from other invasive Aedes mosquitoes are also given (see Additional files).MethodsAll possible breeding sites for larval development were monitored. In addition, ovitraps and traps for adults were used to collect eggs and adults. The mosquitoes (larvae and adults) were identified morphologically and molecularly. Environmental data and climatic variables during the period of mosquito activity (from April to October) were considered.ResultsAedes koreicus was found in 37 municipalities (39.4%) and was detected in 40.2% of places and in 37.3% of larval habitats monitored, in a range of altitude from 173 to 1250 m.a.s.l.. Garden centres were the most common locations (66.7%), followed by streets/squares (57.1%), private gardens (46.4%) and cemeteries (21.1%) (p < 0.01). The main larval habitats were catch basins (48.5%) and artificial water containers (41.8%). As for Aedes albopictus [Stegomyia albopicta], ovitraps were attractive for adult females resulting in the higher rate of positivity (15/21; 71.4%) among breeding sites. The period of Ae. koreicus activity ranged from March 29 to October 29.ConclusionThe species is clearly established in the area and is now overlapping with other vectors such as Ae. albopictus and colonizing areas over 800 m.a.s.l, not yet or sporadically reached by the tiger mosquito. The data collected are essential to assess the risk of colonization of other parts of Italy and Europe, as well as the risk of spreading of pathogens transmitted. These findings stress the importance of implementing entomological surveillance for early detection of invasive species, which is necessary for eradication or limitation of its further spread.

Project description:In Colombia Aedes (Stegomyia) aegypti is the main vector of urban arboviruses such as dengue, chikungunya and Zika. This urban mosquito has a well-established capacity to develop insecticide resistance to different types of insecticides (pyrethroids, organochlorides, organophosphates), using multiple resistance mechanisms. An understanding of ongoing resistance mechanisms is critical to determining the activities of vector control programs. In order to identify the biochemical and molecular mechanisms associated with pyrethroid resistance in Colombia, three laboratory-selected strains resistant to DDT, Propoxur and lambdacyhalothrin, and 7 field-collected strains were evaluated. CDC bioassays were performed to measure the susceptibility status to pyrethroid type I (permethrin) and II (deltamethrin and lambdacyhalothrin), and potential cross-resistance to different types of insecticides; organochlorine (DDT), carbamates (propoxur) and organophosphates (malathion). The enzymatic activity of esterases, glutathione S-transferases (GST) and P450 monooxygenases were biochemically determined. Frequencies of kdr mutations Val1016Ile and Phe1534cys were determined through real-time PCR. The Rockefeller strain of Aedes (Stegomyia) aegypti was used as the susceptible control. The laboratory-selected strains "propoxur" and "lambdacyhalothrin" and one field population (Medellín (BF) F2 were resistant to all evaluated pyrethroids. Six of the seven field populations as well as the laboratory- selected "DDT" strain were resistant to permethrin. All the evaluated strains were resistant to DDT. Cross-resistance between lambdacyhalothrin and propoxur was observed in the laboratory-selected strains; however, all field-collected strains were susceptible to propoxur and no evidence of malathion resistance was found. The main biochemical mechanism for resistance observed in the field-collected strains was related to the enzyme GST. Further, the frequencies of kdr mutations alleles associated with insecticide resistance were high and ranged from 0.02 to 0.72 for Ile1016 and from 0.44 to 0.99 for Cys1534. Strains with high frequencies of both kdr mutations were resistant to both type I and II pyrethroids. These results suggest that Ae. aegypti from Colombia have developed multiple resistance mechanisms associated with pyrethroid resistance; therefore a resistance management strategy against these field populations of Ae. Aegypti, incorporating these findings is strongly recommended.

Dataset Information

Detection of the Invasive Mosquito Species Aedes (Stegomyia) aegypti and Aedes (Hulecoeteomyia) koreicus on the Southern Coast of the Crimean Peninsula.

Background

Methods

Results

Conclusion

Publications

Detection of the Invasive Mosquito Species <i>Aedes</i> (<i>Stegomyia</i>) <i>aegypti</i> and <i>Aedes</i> (<i>Hulecoeteomyia</i>) <i>koreicus</i> on the Southern Coast of the Crimean Peninsula.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets