Sebastien Calvignac-Spencer
@scs22.bsky.social
550 followers 240 following 37 posts
Infectious disease ecology and evolution, pathogen genomics, environmental DNA, ancient DNA/RNA
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Reposted by Sebastien Calvignac-Spencer
helmholtz-hioh.bsky.social
New study by the Institut Pasteur de Bangui and HIOH examines CAR #mpox outbreaks via genomic #epidemiology. High frequencies of independent spillovers highlight the need to strengthen systematic surveillance & identify animal sources to prevent future outbreaks www.sciencedirect.com/science/arti...
Three researchers preparing samples for high-throughput sequencing in the laboratories of the Genomic Surveillance Platform of the Institut Pasteur de Bangui.
scs22.bsky.social
Thanks to Verena for involving us and to all those involved, including the curators of the collections in Zurich (who provided the new samples) and the Berlin Museum of Medical History of the Charite (who provided positive controls).
scs22.bsky.social
More data is definitely needed to understand the evolutionary genomics of the largest respiratory pandemic of the 20th century.
We don t expect a ton of specimens out there, but a few more can certainly be found.
scs22.bsky.social
@lemeylab.bsky.social (incl Bram Vrancken) kicked in to show that the small sample of 1918 IAVs seem to show higher diversity in HA, PA, and PB2 than matched 2009 H1N1pdm samples.
Perhaps helped transition to high pathogenicity, as HA and pol genes have been linked to 1918 IAV high pathogenicity?
scs22.bsky.social
The case was from the pre pandemic wave that hit Zurich in July 1918, and was sampled within a week of the first patient clearly identified as a flu case in the city.
The genome already shows human-like residues at key sites for adaptation to mammalian hosts.
scs22.bsky.social
Congrats to the two amazing PhD candidates who led this work @schlotterbeckj.bsky.social and Carme Riutord-Fe: terrific job! And many thanks to Fabian Leendertz, Liv Patrono, Ari Düx, @jangogarten.bsky.social and everyone involved for yet another exciting project together! 4/4
scs22.bsky.social
At first glance it may seem exaggerated to put so much emphasis on a single or a few ecosystems, but in the long run I think it is probably our best shot at disentangling the complex ecological processes that lead to the emergence of infectious diseases 3/4
scs22.bsky.social
This was only possible because of @helmholtz-hioh.bsky.social commitment to long term health monitoring of wild nonhuman primates, here at Taï (CIV) with our friends of the @taichimpproject.bsky.social 2/4
scs22.bsky.social
We just succeeded in formally linking a specific rodent species - the otherwise charming fire-footed rope squirrel - to the onset of a mpox outbreak in a primate species - sooty mangabeys. Here Kai’s report on the preprint we released yesterday 1/2
kakape.bsky.social
Researchers have been trying for a long time to nail down where in nature mpox lurks.
Now they appear to have caught the virus that causes mpox in the act of spilling over from squirrels to monkeys.
“It is the best clue so far for what the reservoir might be”, says @kgandersen.bsky.social
#IDsky 🧪
How do mpox outbreaks start? Dead baby monkey provides important clue
“Landmark” study fingers fire-footed rope squirrel as a reservoir of fatal disease
www.science.org
Reposted by Sebastien Calvignac-Spencer
restoreideu.bsky.social
🧬 First update from the eDNA lab! 🪰

Extracting mammalian DNA from carrion flies collected in Tanzania for biodiversity studies.

A first trial using @helmholtz-hioh.bsky.social protocol for the flies collected by @uantwerpen.bsky.social + #Gecolab

Shoutout to @paulinevanl.bsky.social ! 📸

#eDNA
Reposted by Sebastien Calvignac-Spencer
helmholtz-hioh.bsky.social
🚨 #Job Alert 🚨
Die Bewerbungsfrist für die Position als Institutssekretär:in am HIOH endet bald! 📅 Bewerbungsschluss: 22. Januar.
Eine spannende Chance, Teil eines internationalen Forschungsteams in Greifswald zu werden. Mehr Infos: www.helmholtz-hioh.de/fileadmin/HI...
#JobOpportunity #OneHealth
Reposted by Sebastien Calvignac-Spencer
tuliodna.bsky.social
Excited to announce the African STARS Fellowship, one of the largest programs in Africa. In partnership with Mastercard Foundation, Institut Pasteur & Stellenbosch University, initial funding of 165 million rands. Press release ceri.org.za/news/?token=... Launch 15 Jan, Cape Town, SA
scs22.bsky.social
I also think that it does a pretty good job at publicizing important discussions and changes through multiple means (website, Arch Vir, JGV and articles in prominent journals, e.g. Nat Microbiol).
scs22.bsky.social
As others, including @psimmond.bsky.social have pointed at, the ICTV welcomes all views and proposals.
scs22.bsky.social
A very reasonable thread on this (a bit unnecessarily overheated) debate.
robjgifford.bsky.social
Personally, I have a lot of sympathy for Jens Kuhn. He's dealing with a fundamental and increasingly pressing issue in virology, one that might otherwise be neglected without the intense dedication of someone so earnestly committed to the cause.
kgandersen.bsky.social
“Somebody needs to take away whatever drugs the committee is on,” wrote Kristian Andersen"

"Kuhn, the autocrat, mainly rolled his eyes. He hated some of the names, too. “Salt in my wounds,” he called syllabic stews like Lentivirus humimdef1"*

#Virology 😆

www.statnews.com/2025/01/09/v...
scs22.bsky.social
I d also like to be added. Thanks!
Reposted by Sebastien Calvignac-Spencer
psimmond.bsky.social
Hi
Related to your & the previous post, I looked it up and there are 120 Study Groups (SGs), with collectively more than 900 members. These are expert and typically quite experienced virologists, & should provide a reasonable cross-section of knowledge and expertise. So it's not a mad dictatorship!
Reposted by Sebastien Calvignac-Spencer
sarah-c-hill.bsky.social
🦠 We are recruiting two 2-year postdocs to work at the intersection of virus genomics and infectious disease. jobs.rvc.ac.uk/vacancy.aspx... Please share widely!
An image with text describing the jobs, and the logo of the Royal Veterinary College. The text says:

Title: Hiring two postdoctoral researchers. 

What? Improve identification and response to emerging and endemic virus threats.
Where? Royal Veterinary College.
How? Genomics, metagenomics, phylogenetics.
Who: Working with Prof Oliver Pybus, Dr Sarah Hill, Dr Jayna Rahgwani, and GAP DC. 
When? Apply by 27th January 2025. 

Underneath this, there are two boxes describing the two roles:
Role 1: Phylodynamics: Introduction, emergence and spread of viruses in farmed and wild animals. 
Role 2: Detect and understand threats to/from wildlife and their environments.
scs22.bsky.social
This happens every year, which means the ICTV is de facto a permanent consultation body; however, it does not wait for the broader community engagement to enact taxonomy changes
scs22.bsky.social
These proposals are reviewed by the SG, then
subcommittees and finally the executive committee - a process starting in spring each year (SG send proposals to subcommittees at this point). Approved proposals are then ratified by the entire ICTV membership in the fall
scs22.bsky.social
All binomials have already been approved by the ICTV and therefore represent the current official taxonomy. The way it works: ICTV operates year-round, with taxonomy change proposals collected by (usually) family level study groups (SG) and subcommittees - each overseeing multiple SG
scs22.bsky.social
The new binomials can be found in the ICTV website‘s taxonomy browser, where a tabular master species list is also available

ictv.global/taxonomy

ictv.global/msl
scs22.bsky.social
Much like peer reviewing, it is the kind of community service that many of us add to their evenings and weekends workload. I believe it is now up to the community to engage more with the ICTV. The tools exist (proposals of taxonomic change can be filed by anyone).