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Detection of insect-specific flaviviruses in mosquitoes (diptera: culicidae) in Northeastern regions of South Africa
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Guarido, Milehna M., Govender, Kamini, Riddin, Megan A., Schrama, Maarten, Gorsich, Erin E., Brooke, Basil D., Almeida, Antonio Paulo Gouveia and Venter, Marietjie (2021) Detection of insect-specific flaviviruses in mosquitoes (diptera: culicidae) in Northeastern regions of South Africa. Viruses , 13 (11). 2148. doi:10.3390/v13112148 ISSN 1999-4915. [ 🗎 Public]. [ (✓) hoa:511 ]
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WRAP-Detection-insect-specific-flaviviruses-mosquitoes-didpteraculicidae-Northeastern-regions-South-Africa-2021.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (1122Kb) | Preview |
Official URL: https://doi.org/10.3390/v13112148
Abstract
Mosquitoes in the Aedes and Culex genera are considered the main vectors of pathogenic flaviviruses worldwide. Entomological surveillance using universal flavivirus sets of primers in mosquitoes can detect not only pathogenic viruses but also insect-specific ones. It is hypothesized that insect-specific flaviviruses, which naturally infect these mosquitoes, may influence their vector competence for zoonotic arboviruses. Here, entomological surveillance was performed between January 2014 and May 2018 in five different provinces in the northeastern parts of South Africa, with the aim of identifying circulating flaviviruses. Mosquitoes were sampled using different carbon dioxide trap types. Overall, 64,603 adult mosquitoes were collected, which were screened by RT-PCR and sequencing. In total, 17 pools were found positive for insect-specific Flaviviruses in the mosquito genera Aedes (12/17, 70.59) and Anopheles (5/17, 29.41). No insect-specific viruses were detected in Culex species. Cell-fusing agent viruses were detected in Aedes aegypti and Aedes caballus. A range of anopheline mosquitoes, including Anopheles coustani, An. squamosus and An. maculipalpis, were positive for Culex flavivirus-like and Anopheles flaviviruses. These results confirm the presence of insect-specific flaviviruses in mosquito populations in South Africa, expands their geographical range and indicates potential mosquito species as vector species.
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | Q Science > QR Microbiology > QR355 Virology | ||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||||||||||
| Library of Congress Subject Headings (LCSH): | Flaviviruses, Mosquitoes | ||||||||||||
| Journal or Publication Title: | Viruses | ||||||||||||
| Publisher: | MDPI AG | ||||||||||||
| ISSN: | 1999-4915 | ||||||||||||
| Official Date: | 25 October 2021 | ||||||||||||
| Dates: |
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| Volume: | 13 | ||||||||||||
| Number: | 11 | ||||||||||||
| Article Number: | 2148 | ||||||||||||
| DOI: | 10.3390/v13112148 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
| Date of first compliant deposit: | 25 October 2021 | ||||||||||||
| Date of first compliant Open Access: | 26 October 2021 | ||||||||||||
| RIOXX Funder/Project Grant: |
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