Aedes species (Diptera: Culicidae) ecological and host feeding patterns in the north-eastern parts of South Africa, 2014–2018

dc.contributor.authorGuarido, Milehna M.
dc.contributor.authorRiddin, Megan A.
dc.contributor.authorJohnson, Todd
dc.contributor.authorBraack, L.E.O.
dc.contributor.authorSchrama, M.
dc.contributor.authorGorsich, E.E.
dc.contributor.authorBrooke, B.D.
dc.contributor.authorAlmeida, Antonio Paulo Gouveia
dc.contributor.authorVenter, Marietjie
dc.date.accessioned2022-03-07T12:23:48Z
dc.date.available2022-03-07T12:23:48Z
dc.date.issued2021-06
dc.description.abstractBACKGROUND: There is a paucity of recent data and knowledge on mosquito diversity and potential vectors of arboviruses in South Africa, with most of the available data dating back to the 1950s–1970s. Aedes and Culex species are the major vectors of some of the principal arboviruses which have emerged and re-emerged in the past few decades. METHODS: In this study we used entomological surveillance in selected areas in the north-eastern parts of South Africa from 2014 to 2018 to assess mosquito diversity, with special emphasis on the Aedes species. The impact of trap types and environmental conditions was also investigated. Identifcation of the blood meal sources of engorged females collected during the study period was carried out, and DNA barcodes were generated for selected species. RESULTS: Overall, 18.5% of the total Culicidae mosquitoes collected belonged to the genus Aedes, with 14 species recognised or suspected vectors of arboviruses. Species belonging to the Neomelaniconion subgenus were commonly collected in the Bushveld savanna at conservation areas, especially Aedes mcintoshi and Aedes circumluteolus. Aedes aegypti was present in all sites, albeit in low numbers. Temperature was a limiting factor for the Aedes population, and they were almost exclusively collected at temperatures between 18 °C and 27 °C. The cytochrome oxidase subunit I (COI) barcode fragment was amplifed for 21 Aedes species, and for nine of these species it was the frst sequence information uploaded on GenBank. CONCLUSION: This study provides a better understanding of the diversity and relative abundance of Aedes species in the north-east of South Africa. The information provided here will contribute to future arboviral research and implementation of efcient vector control and prevention strategies.en_ZA
dc.description.departmentMedical Virologyen_ZA
dc.description.departmentUP Centre for Sustainable Malaria Control (UP CSMC)en_ZA
dc.description.librarianpm2022en_ZA
dc.description.sponsorshipThe Centers for Disease Control and Preventionen_ZA
dc.description.urihttp://www.parasitesandvectors.comen_ZA
dc.identifier.citationGuarido, M.M., Riddin, M.A., Johnson, T. et al. Aedes species (Diptera: Culicidae) ecological and host feeding patterns in the north-eastern parts of South Africa, 2014–2018. Parasites Vectors 14, 339 (2021). https://doi.org/10.1186/s13071-021-04845-9.en_ZA
dc.identifier.issn1756-3305 (online)
dc.identifier.other10.1186/s13071-021-04845-9
dc.identifier.urihttp://hdl.handle.net/2263/84374
dc.language.isoenen_ZA
dc.publisherBMCen_ZA
dc.rights© The Author(s) 2021. This article is licensed under a Creative Commons Attribution 4.0 International License.en_ZA
dc.subjectMosquitoesen_ZA
dc.subjectDisease vectorsen_ZA
dc.subjectAfricaen_ZA
dc.subjectSouth Africa (SA)en_ZA
dc.subjectMosquito diversityen_ZA
dc.subjectAedes speciesen_ZA
dc.subjectTrap typesen_ZA
dc.subjectEnvironmental conditionsen_ZA
dc.titleAedes species (Diptera: Culicidae) ecological and host feeding patterns in the north-eastern parts of South Africa, 2014–2018en_ZA
dc.typeArticleen_ZA

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