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Simon Dellicour @sdellicour.bsky.social · 9d

A huge thank you to @kylaserres.bsky.social for having coordinated the logistical aspects of this edition, as well as to the FNRS and @ulbruxelles.bsky.social for their support

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Simon Dellicour @sdellicour.bsky.social · 9d

A great opportunity to present and discuss about current research projects in the respective teams and beyond, enhancing interdisciplinarity, and opening new collaboration opportunities

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Simon Dellicour @sdellicour.bsky.social · 9d

Ongoing at the @ulbruxelles.bsky.social: the 4th edition of the Health Geography and Spatial Epidemiology workshop organised by the homonymous FNRS contact group (www.healthgeographygroup.eu)

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Reposted by Simon Dellicour

Andrew Rambaut @arambaut.bsky.social · Jul 2

BEAST X v10.5.0 finally released – you can't just do beta releases forever. github.com/beast-dev/be...

Details and instructions for installing on the BEAST website: beast.community

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Simon Dellicour @sdellicour.bsky.social · Jun 26

Our study on the development and comparative performance of novel landscape phylogeography approaches has now been published in @pnas.org: lnkd.in/d5yuYwk6. A study led at the @ulbruxelles.bsky.social and @kuleuvenuniversity.bsky.social, and mainly conducted with the support of the F.R.S.-FNRS

This link will take you to a page that’s not on LinkedIn

lnkd.in

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Reposted by Simon Dellicour

Moritz Kraemer @mugkraemer.bsky.social · Jun 10

Phylogenetic insights into the transmission dynamics of arthropod-borne viruses

www.nature.com/articles/s41...

Great work by Verity Hill and team

Phylogenetic insights into the transmission dynamics of arthropod-borne viruses - Nature Reviews Genetics

Arthropod-borne viruses have a substantial impact on global health, with climate change and urbanization exacerbating their emergence. Integrating genomic surveillance and phylogenetic models with eco...

www.nature.com

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Reposted by Simon Dellicour

Nathan Grubaugh @nathangrubaugh.bsky.social · Jun 9

Interested in using phylogenetics to study arboviruses? Our new review in @natrevgenet.nature.com‬ by @viralverity.bsky.social‬, @sdellicour.bsky.social‬, and Marta Giovanetti has you covered!

📖 👉 rdcu.be/epH2U

Short 🧵

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Reposted by Simon Dellicour

Société Française de Phytopathologie @sfp-france.bsky.social · May 20

#SFP2025 is just starting. Lets talk about plant pathology!

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Reposted by Simon Dellicour

Spyros Lytras @spyroslytras.bsky.social · May 10

Sooo happy to finally have this one published!! (3 years in the making… 👀) A comprehensive investigation into the recency and geographical origins of both SARS-CoVs that spilled to humans in the past few decades, now in @cp-cell.bsky.social www.cell.com/cell/fulltex...

The recency and geographical origins of the bat viruses ancestral to SARS-CoV and SARS-CoV-2

Recombination-aware evolutionary analyses of the entire genomes of SARS-CoV-1-like and SARS-CoV-2-like viruses indicate that SARS-CoV-1 and SARS-CoV-2 descend from bat coronaviruses that circulated as...

www.cell.com

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Reposted by Simon Dellicour

Stuart Neil @tetherin.bsky.social · May 7

Comparative phylogeography and recombination patterns of SARS CoV-1 and SARS CoV-2 related viruses. Both are derived from recent recombinations in their host bats, and then emerged in human hundreds of miles from their wild reservoirs.

www.cell.com/cell/fulltex...

The recency and geographical origins of the bat viruses ancestral to SARS-CoV and SARS-CoV-2

Recombination-aware evolutionary analyses of the entire genomes of SARS-CoV-1-like and SARS-CoV-2-like viruses indicate that SARS-CoV-1 and SARS-CoV-2 descend from bat coronaviruses that circulated as...

www.cell.com

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Reposted by Simon Dellicour

ULBRecherche @ulbrecherche.bsky.social · May 7

🦇🦠 Nouvelle étude sur l’origine des virus de chauve-souris liés au SRAS et à la COVID-19 : le SARS-CoV-2 serait arrivé à Wuhan trop vite pour avoir été transporté naturellement par des chauves-souris.

👉 bit.ly/4m3Fb4Y
@mariusgilbert.bsky.social @sdellicour.bsky.social

Nouvelle étude sur l’origine géographique des virus de chauve-souris ancêtres des virus responsables du SRAS et de la COVID-19 - Actualités de l'ULB

bit.ly

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Simon Dellicour @sdellicour.bsky.social · Mar 28

A study performed with Fabiana Gámbaro, @maudejacquot.bsky.social, @lequimelab.eu, @guybaele.bsky.social, @mariusgilbert.bsky.social, Oliver Pybus, @msuchard.bsky.social, and @lemeylab.bsky.social - 8/8

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Simon Dellicour @sdellicour.bsky.social · Mar 28

Continuous phylogeographic simulations and landscape phylogeographic analyses were all conducted using new functions implemented in the R package “seraphim” available at github.com/sdellicour/s..., which now also comes with new dedicated tutorials. - 7/8

GitHub - sdellicour/seraphim: R package for studying environmental rasters and phylogenetic informed movements (Dellicour et al. 2016, Bioinformatics; Dellicour et al. 2016, BMC Bioinf.)

R package for studying environmental rasters and phylogenetic informed movements (Dellicour et al. 2016, Bioinformatics; Dellicour et al. 2016, BMC Bioinf.) - sdellicour/seraphim

github.com

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Simon Dellicour @sdellicour.bsky.social · Mar 28

Our open-source methods are all available on GitHub (github.com/sdellicour/l...) and can be used to investigate the drivers of viral spread, with potential benefits for a better understanding of virus ecology and epidemiology. - 6/8

GitHub - sdellicour/landscape_phylogeography: Input files and scripts related to our study entitled "comparative performance of novel viral landscape phylogeography approaches", and which provides a s...

Input files and scripts related to our study entitled "comparative performance of novel viral landscape phylogeography approaches", and which provides a simulation framework for assessing...

github.com

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Simon Dellicour @sdellicour.bsky.social · Mar 28

The results of our analyses enable us to formulate clear guidelines for the use of three complementary landscape phylogeographic approaches that have sufficient statistical power and low rates of false positives. - 5/8

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Simon Dellicour @sdellicour.bsky.social · Mar 28

that can test the impact of continuous environmental factors on the diffusion velocity of viral lineages. In order to evaluate the different methods, we also implemented two simulation frameworks to test and compare their statistical performance. - 4/8

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Simon Dellicour @sdellicour.bsky.social · Mar 28

In particular, landscape phylogeographic approaches use phylogeographic reconstructions to investigate the impact of environmental factors on the spatial spread of viruses. What we did in this study: we improved existing approaches and developed three novel landscape phylogeographic methods - 3/8

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Simon Dellicour @sdellicour.bsky.social · Mar 28

The context: the fast rate of evolution in RNA viruses implies that their evolutionary and ecological processes occur on the same time scale. Genome sequences of these pathogens can therefore contain information about the processes that govern their transmission and dispersal. - 2/8

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Simon Dellicour @sdellicour.bsky.social · Mar 28

Check out our latest study "Comparative performance of novel viral landscape phylogeography approaches", which is now available as a preprint on bioRxiv: www.biorxiv.org/content/10.1.... @ulbruxelles.bsky.social @ulbrecherche.bsky.social - 1/8

Comparative performance of novel viral landscape phylogeography approaches

The fast rate of evolution in RNA viruses implies that their evolutionary and ecological processes occur on the same time scale. Genome sequences of these pathogens can therefore contain information a...

www.biorxiv.org

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Reposted by Simon Dellicour

Claire Guinat @claireguinat.bsky.social · Feb 5

📢 New paper out! 🦆
Our latest study on HPAI in France and risk mapping has just been published doi.org/10.1371/jour...
@epidesa.bsky.social @inrae-france.bsky.social @anses-fr.bsky.social ENVT ULB

Spatial risk modelling of highly pathogenic avian influenza in France: Fattening duck farm activity matters

In this study, we present a comprehensive analysis of the key spatial risk factors and predictive risk maps for HPAI infection in France, with a focus on the 2016–17 and 2020–21 epidemic waves. Our fi...

doi.org

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Reposted by Simon Dellicour

Marius Gilbert @mariusgilbert.bsky.social · Feb 4

Lecture essentielle pour comprendre ce qui est occupé à se passer dans l'administration américaine.

Flo Débarre @flodebarre.bsky.social · Feb 4

Il est important de documenter ce qu'il se passe, et ce long article du New York Times rassemble beaucoup d'informations. La mainmise de Musk sur le gouvernement américain est effarante

Elon Musk’s Blitz Shakes U.S. Government as He Sweeps Through Agencies (Gift Article)

The billionaire is creating major upheaval as his team sweeps through agencies, in what has been an extraordinary flexing of power by a private individual.

www.nytimes.com

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Simon Dellicour @sdellicour.bsky.social · Dec 4

with a continuous phytogeographic reconstruction that you conducted for a virus spreading in (animal) populations, feel free to contact us to extend the above figure with the estimates based on your dataset. The resulting figure and comparison will then be at your disposal (7/7)

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Simon Dellicour @sdellicour.bsky.social · Dec 4

Overall, we here propose a comprehensive framework that can be used to compare how fast various viruses can spread, and which can be extended to analysis of further datasets: github.com/sdellicour/d.... If you would like to compare the dispersal capacity and pattern associated (6/7)

GitHub - sdellicour/dispersal_capacities: Input files and scripts related to our study entitled "How fast are viruses spreading in the wild?", and which provides a framework for comparing the dispersa...

Input files and scripts related to our study entitled "How fast are viruses spreading in the wild?", and which provides a framework for comparing the dispersal capacity of viruses (Dellic...

github.com

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Simon Dellicour @sdellicour.bsky.social · Dec 4

These results mostly reflect the dispersal capacity of the main infected host species but also, in some cases, the likely signature of rapid and/or long-distance dispersal events driven by human-mediated movements through animal trade (5/7)

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Simon Dellicour @sdellicour.bsky.social · Dec 4

We then use these two dispersal metrics to compare the dispersal pattern and capacity of various viruses spreading in animal populations. Our comparative analysis reveals a broad range of IBD patterns and diffusion coefficients (4/7)

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