Eilat virus isolated from Culex univittatus mosquitoes from the Namibian Zambezi Region influences in vitro superinfection with alpha- and flaviviruses in a virus-species-dependent manner
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| Title: | Main Title: Eilat virus isolated from Culex univittatus mosquitoes from the Namibian Zambezi Region influences in vitro superinfection with alpha- and flaviviruses in a virus-species-dependent manner |
| Description: | Abstract: The genus Alphavirus harbors arboviruses of great concern, such as the Chikungunya virus and the equine encephalitis viruses. Transmission of pathogenic alphaviruses by mosquitoes could be influenced by insect-specific alphaviruses such as Eilat virus (EILV). However, insect-specific alphaviruses are rarely found in wild mosquitoes and only a few have been described in the literature. Here, we report the detection of EILV in a Culex univittatus mosquito from the north-eastern Namibian Zambezi region. Full genome analysis of MP458-NA-2018 showed 94.5% nucleotide identity to an EILV isolate from Israel. MP458-NA-2018 grouped with EILV in phylogenetic analysis and was placed within the clade of insect-specific alphaviruses. The virus was isolated in mosquito cells and shown to be restricted to insects as hosts by the inability to infect different vertebrate cell lines and a complete block of virus replication at 34°C. We further showed that infection of cells with EILV MP458-NA-2018 reduced production of infectious particles of Sindbis virus by 2000-fold over the entire course of infection, whereas reduction rates of Bagaza and Middleburg virus were approximately 3-10-fold and dependent on time after infection. While production of infectious particles of cells superinfected with the Chikungunya virus were approximately 30-fold reduced and more pronounced at a lower multiplicity of infection of 0.01, EILV seemed to enhance production of West Nile virus infectious particles by >5-fold when superinfected at a multiplicitiy of infection of 0.1. In summary, EILV from the Namibian Zambezi region influences in vitro replication of endemic flavi- and alphaviruses. |
| Citation Advice: | Guggemos HD, Kopp A, Voigt K, Fendt M, Graff SL, Mfune JKE, Borgemeister C, Junglen S. Eilat virus isolated from Culex univittatus mosquitoes from the Namibian Zambezi Region influences in vitro superinfection with alpha- and flaviviruses in a virus-species-dependent manner. PLoS One. 2024 Dec 20;19(12):e0312182. doi: 10.1371/journal.pone.0312182. PMID: 39705228; PMCID: PMC11661592. |
Responsible Party
| Creators: | Heiko Guggemos (Author), Anne Kopp (Author), Katrin Voigt (Author), Matthias Fendt (Author), Selina Graff (Author), John Mfune (Author), Christian Borgemeister (Author), Sandra Junglen (Author) |
| Funding Reference: | Deutsche Forschungsgemeinschaft (DFG): CRC/TRR 228: Future Rural Africa: Future-making and social-ecological transformation |
| Publisher: | PLOS |
| Publication Year: | 2024 |
Topic
| TRR228 Topic: | Ecology |
| Related Subproject: | B2 |
| Subjects: | Keywords: Mosquitoes, Virology, Biodiversity |
| Geogr. Information Topic: | Health |
File Details
| Filename: | Eilat_paper_Heiko.pdf |
| Data Type: | Text - Publication |
| File Size: | 2.1 MB |
| Date: | Accepted: 02.10.2024 |
| Mime Type: | application/pdf |
| Data Format: | |
| Language: | English |
| Status: | Completed |
Constraints
| Download Permission: | Free |
| General Access and Use Conditions: | According to the TRR228DB data policy agreement. |
| Access Limitations: | According to the TRR228DB data policy agreement. |
| Licence: | [Creative Commons] Attribution 4.0 International (CC BY 4.0) |
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Specific Information - Publication
| Publication Status: | Published |
| Review Status: | Peer reviewed |
| Publication Type: | Article |
| Article Type: | Journal |
| Source: | PLOS One |
| Number of Pages: | 16 (1 - 16) |
Metadata Details
| Metadata Creator: | Hannah Munzel |
| Metadata Created: | 24.03.2025 |
| Metadata Last Updated: | 24.03.2025 |
| Subproject: | B2 |
| Funding Phase: | 2 |
| Metadata Language: | English |
| Metadata Version: | V50 |
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| Metadata Downloads: | 0 |
| Dataset Downloads: | 0 |
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