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Simon Cauchemez

@scauchemez.bsky.social
3.1K followers 902 following 74 posts

Professor of infectious disease epidemiology and modelling at Institut Pasteur, Paris. Transmission, epidemic dynamics and forecasting, seroepidemiology, vaccines and NPIs, respiratory and vector born diseases, zoonoses, Public Health. #IDSky

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Reposted by Simon Cauchemez
Institut Pasteur | 130 years of biomedical research @pasteur.fr · 22/07/2026
Quantifying how multiple transmission routes contribute to the spread of HTLV-1 in different endemic foci: a mathematical modelling study @scauchemez.bsky.social ↘️ www.sciencedirect.com/science/arti...
Credit © Institut Pasteur/A-M. Pais-Correia, M-I. Thoulouze et A. Alcover, unité de Biologie Cellulaire des Lymphocytes - S. Guadagnini, Plate-forme de microscopie ultrastructurale - A. Gessain, unité d'Epidémiologie et Physiopathologie des Virus Oncogènes.
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Reposted by Simon Cauchemez
Victor Yman @vyman.bsky.social · 15/04/2026
Excited to share our new paper out today in @natcomms.nature.com Combining multiplex serology, mathematical modelling, and experimental validation reveals arbovirus transmission dynamics despite cross-reactivity. (1/2)
nature.com
Investigating antibody cross-reactivity and transmission dynamics of alphaviruses and flaviviruses using a multiplex serological assay - Nature Communications
Arboviruses often co-circulate, but cross-reactivity hampers serological diagnostics. Here, the authors paired multiplex serology with competitive immunoassays and Bayesian modelling to quantify antib...
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Simon Cauchemez @scauchemez.bsky.social · 09/04/2026
Just a few days left to apply to one of these postdoc positions in my Unit at @pasteur.fr!
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Reposted by Simon Cauchemez
IDDjobs @iddjobs.org · 20/03/2026
Postdoc (Paris, France) Epidemic modeling considering a broad range of epidemiological data with @scauchemez.bsky.social at @pasteur.fr More details: iddjobs.org/jobs/2497
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Simon Cauchemez @scauchemez.bsky.social · 20/03/2026
Two postdoc positions for a number of exciting epidemic modelling projects opening in my Unit at @pasteur.fr in beautiful Paris. Deadline for applications: 13th April. More details at the following link: research.pasteur.fr/job/two-post...
research.pasteur.fr
Two postdoctoral positions in epidemic modelling - Research
Job description We are recruiting 2 postdocs to contribute to research projects in the Mathematical Modelling of Infectious Diseases Unit, at Institut Pasteur in Paris. The postdocs will develop state...
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Simon Cauchemez @scauchemez.bsky.social · 19/03/2026
This is a fantastic course on infectious disease modelling in Stockholm in June and I encourage anyone interested in this topic to attend. Early bird registration closing soon!
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Reposted by Simon Cauchemez
Moritz Kraemer @mugkraemer.bsky.social · 02/02/2026
Frequent presymptomatic household transmission of influenza A but not influenza B virus www.nature.com/articles/s44...
nature.com
Frequent presymptomatic household transmission of influenza A but not influenza B virus - Nature Health
Based on two waves of data collection from 748 households in Hong Kong, this analysis sheds light on the number of transmission events that occurred before manifestation of symptoms in influenza A and...
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Simon Cauchemez @scauchemez.bsky.social · 19/01/2026
Come to Institut Pasteur in beautiful Paris to create your own research group! It's such a nice environment to do research! research.pasteur.fr/en/call/crea...
research.pasteur.fr
Creation of new junior research groups at the Institut Pasteur - Call for applications 2026 - Research
The Institut Pasteur is launching an international call to recruit new junior research group leaders leveraging cutting-edge transdisciplinary approaches to exploring infectious diseases, host-microbe...
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Simon Cauchemez @scauchemez.bsky.social · 19/01/2026
Dont miss the ESPIDAM summer program in June 2026 in Stockholm, covering many key concepts for ID modelling: stochastic models, AI for ID control, nowcasting and forecasting, phylodynamics, data analysis, network models, within-host models, health economics www.statistics.su.se/english/divi...
statistics.su.se
ESPIDAM, the European Summer Program in Infectious Disease Analysis and Modelling - Stockholms universitet
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Reposted by Simon Cauchemez
Adam Kucharski @adamjkucharski.bsky.social · 09/01/2026
Interesting new paper on value of serological surveillance for reconstructing epidemics: www.thelancet.com/journals/lan... And accompanying comment by @scauchemez.bsky.social: www.thelancet.com/journals/lan...
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Simon Cauchemez @scauchemez.bsky.social · 05/01/2026
Few years ago, an intern in the team explored historical archives and identified a fascinating report describing with great detail the large French cholera epidemic of 1892. The modelling analysis of these data has now been published in Epidemics. www.sciencedirect.com/science/arti... 🧪
sciencedirect.com
Modeling the spatio-temporal spread of cholera in France in 1892
From an historical perspective, it is important to understand how past epidemics spread; but such a task is complicated by limited data availability. …
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Simon Cauchemez @scauchemez.bsky.social · 18/12/2025
Very interesting framework developed by @meganodris.bsky.social to jointly infer epi and antigenic parameters from multi-pathogen serology!
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Reposted by Simon Cauchemez
Dr Roz Eggo @rozeggo.bsky.social · 16/12/2025
Symposium & workshop on inequalities in infectious disease dynamics at LSHTM in April 2026. We aim to will bring together leading researchers and practitioners to share ideas, discuss recent advances, and reflect on future directions. Details & application: iddconf.org/lshtm-sympos... Closing 21 Jan
iddconf.org
Social Inequalities in Infectious Disease Dynamics: a Symposium and Workshop
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Simon Cauchemez @scauchemez.bsky.social · 10/12/2025
Just a few more days to apply to our 1-week course on Infectious Disease Modelling that will take place at Institut Pasteur, March 9-13 2026, in beautiful Paris! Application deadline: 15 December. www.pasteur.fr/en/education...
pasteur.fr
Pasteur courses
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Reposted by Simon Cauchemez
Dr Edward Hill @edmhill.bsky.social · 30/11/2025
A couple of infectious disease modelling starter packs that may be of interest. 👇
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Reposted by Simon Cauchemez
James Hay @jameshay.bsky.social · 25/11/2025
H3N2 preprint: there are concerns of a severe incoming influenza season due to the drifted H3N2 K clade. We at @psioxford.bsky.social analysed epi data and ran scenario models to see what we could discern about K clade transmission dynamics: zenodo.org/records/1770.... (1/18)
zenodo.org
Evaluation of the epidemiological outlook of the influenza A/H3N2 clade K in England during the 2025-26 season
Key findings England is currently experiencing a high growth rate of infections caused by the influenza A/H3N2 K clade. Antigenic change from the previously dominant clade, a rapid selective sweep evi...
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Simon Cauchemez @scauchemez.bsky.social · 17/11/2025
Two days of great scientific discussions with >100 infectious disease modellers during the annual meeting of FRAME (the French Research Action on Modelling Epidemics), supported by @anrs-mie.bsky.social. What a fantastic research community!
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Reposted by Simon Cauchemez
Institut Pasteur | 130 years of biomedical research @pasteur.fr · 12/09/2025
A new model sheds light on the seasonal dynamics of plague in Madagascar — a step toward better prevention through a One Health approach. 🔗 Read more: www.pasteur.fr/en/research-... @scauchemez.bsky.social @abrault.bsky.social @fanohi.bsky.social
pasteur.fr
Plague in Madagascar: a new model sheds light on the seasonality of outbreaks
A new model has been developed to elucidate the seasonal dynamics of plague in Madagascar. In this country, where the disease remains endemic, and most often occurs between October and March. The asso...
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Reposted by Simon Cauchemez
David Simard @simarddavid.bsky.social · 09/07/2025
Santé Publique France est menacée. www.lemonde.fr/sciences/art...
lemonde.fr
« Surveillance de l’état de santé de la population française : ne cassons pas le thermomètre ! »
TRIBUNE. Un collectif de chercheurs, d’universitaires et de médecins de santé publique appelle, dans une tribune au « Monde », à préserver et à consolider les missions et les moyens de l’agence sanita...
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Simon Cauchemez @scauchemez.bsky.social · 01/07/2025
Infectious Disease Modelling starter pack update! Many more modellers have joined Bluesky recently so this update is overdue. Pls keep on sending suggestions! (bio should contain experience relevant for this pack) IDModelling pack 1: go.bsky.app/86Ao1a5 IDModelling pack 2 : go.bsky.app/2oBB7KX
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Simon Cauchemez @scauchemez.bsky.social · 23/06/2025
Just few days left to apply to one of these postdoc positions in my infectious disease modelling Unit at @pasteur.fr in Paris!
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Simon Cauchemez @scauchemez.bsky.social · 13/06/2025
Great collaboration with Institut Pasteur Madagascar showing how rat and flea dynamics drive plague seasonality, with important implications for control strategies against plague in @pnas.org!
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Simon Cauchemez @scauchemez.bsky.social · 05/06/2025
New postdoc positions with a number of exciting epidemic modelling projects opening in our Unit at @pasteur.fr in beautiful Paris. Deadline for applications: 26th June. research.pasteur.fr/en/job/postd...
research.pasteur.fr
Postdoctoral positions in epidemic mathematical/statistical modelling - Research
Job description We are recruiting postdocs to contribute to research projects in the Mathematical Modelling of Infectious Diseases Unit, at Institut Pasteur in Paris. The candidates will be expected t...
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Reposted by Simon Cauchemez
Manlio De Domenico @manlius.bsky.social · 08/05/2025
Thrilled for the latest work from @comunelab.bsky.social ! We introduce a multilayer + multiscale model in two distinct frameworks (particle- & force-based), identifying how to balance contact and mobility cuts to mitigate epidemics. #ComplexSystems www.sciencedirect.com/science/arti... 🧪🦠
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Reposted by Simon Cauchemez
Mircea T. Sofonea @mtsofonea.bsky.social · 24/03/2025
📊💉 Following the success of its first interface day dedicated to surveillance in 2023, the Modelling network of the @anrs-mie.bsky.social is pleased to be organising today a new interdisciplinary and cross-sectoral event dedicated to the contribution of modelling to vaccinology
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Reposted by Simon Cauchemez
Adam Kucharski @adamjkucharski.bsky.social · 13/03/2025
Latest post on measles vaccines and the fallacy of ‘one more study to settle things’: kucharski.substack.com/p/a-wild-vac...
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Reposted by Simon Cauchemez
Kelly Charniga @kcharniga.bsky.social · 07/03/2025
Big turnout today in Paris to show solidarity with US-based scientists ❤️ 🗽 #StandUpforScienceFrance @pasteur.fr
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Reposted by Simon Cauchemez
Institut Pasteur | 130 years of biomedical research @pasteur.fr · 06/03/2025
Science, research & public health face unprecedented attacks in the U.S. We stand with our American colleagues & support the Stand Up for Science call. Join the global march tomorrow, incl. in Paris! 🧪✊ 📍 March 7, 13:30 – Place Jussieu 🔗 More info: standupforscience.fr #StandUpForScience
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myriamrebeyrotte.bsky.social @myriamrebeyrotte.bsky.social · 06/03/2025
www.pasteur.fr/fr/espace-pr... Un sujet quelque peu dans l'air du temps.
pasteur.fr
Comment l’IA va permettre de mieux anticiper les prochaines pandémies
Dans un article de perspective de la revue Nature, des chercheurs d’Afrique, d’Amérique, d’Asie, d’Australie et d’Europe décrivent pour la première fois comment l’intelligence artificielle (IA) peut r...
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Reposted by Simon Cauchemez
Cécile Tran Kiem @ceciletk.bsky.social · 05/03/2025
Pathogen genomes can provide insights into underlying disease transmission patterns but new methods are needed to analyze large genome datasets. Our work using identical pathogen sequences to characterize fine scale SARS-CoV-2 transmission was just published in @nature.com tinyurl.com/bdzk9xjj 🥳
tinyurl.com
Fine-scale patterns of SARS-CoV-2 spread from identical pathogen sequences - Nature
The analysis of pairs of identical SARS-CoV-2 genome sequences enables characterization of transmission patterns between geographies and age groups.
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Simon Cauchemez @scauchemez.bsky.social · 25/02/2025
During COVID years in France, the SocialCov survey showed major evolution and strong heterogeneities in contact patterns according to age, employment, weekend/vacation. Led by @paolobosetti.bsky.social and @lullaopatowski.bsky.social. bmcinfectdis.biomedcentral.com/articles/10....
bmcinfectdis.biomedcentral.com
Evolution of social contacts patterns in France over the SARS-CoV-2 pandemic: results from the SocialCov survey - BMC Infectious Diseases
Background Non-pharmaceutical measures such as lockdowns, curfews and place closures were implemented in France during 2020–2022 to reduce contacts in the population, to limit the spread of SARS-CoV-2...
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Reposted by Simon Cauchemez
Moritz Kraemer @mugkraemer.bsky.social · 20/02/2025
AI is poised to accelerate understanding in infectious diseases, but its value needs to be demonstrated through close collaboration between research, industry, society, and policy. Paper free to read: rdcu.be/eaxEw Summary here: www.ox.ac.uk/news/2025-02...
rdcu.be
Artificial intelligence for modelling infectious disease epidemics
Nature - This Perspective considers the application to infectious disease modelling of AI systems that combine machine learning, computational statistics, information retrieval and data science.
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Reposted by Simon Cauchemez
Alessandro Vespignani @alexvespi.bsky.social · 12/02/2025
Wastewater from airplane toilets? We introduce a global Aircraft-Based Wastewater Surveillance Network (WWSN) for pandemic monitoring in Nature Medicine 🔗 doi.org/10.1038/s415... Aircraft-based wastewater surveillance allows for real-time, non-invasive monitoring of global pathogen spread Short 🧵
doi.org
Pandemic monitoring with global aircraft-based wastewater surveillance networks - Nature Medicine
By simulating the implementation of airport-based wastewater surveillance sites at the global level, a modeling study shows how this early warning system would perform in identifying sources of pandem...
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Simon Cauchemez @scauchemez.bsky.social · 11/02/2025
Serological data provide key insights on pathogen circulation. We introduce a new R package, Rsero, which is a pipeline to store and analyze age-stratified sero data, estimate the history of pathogen circulation and compare different transmission models. journals.plos.org/ploscompbiol...
journals.plos.org
RSero: A user-friendly R package to reconstruct pathogen circulation history from seroprevalence studies
Author summary Antibodies are immune markers of past infections. Seroprevalence studies that characterize the seropositivity status in the population have been used for decades in epidemiological stud...
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Simon Cauchemez @scauchemez.bsky.social · 04/02/2025
Consider applying to 2nd ESPIDAM summer program on infectious disease modelling, 23-27 June, in beautiful Stockholm! Covering many exciting topics (AI & ID, now/forecasting, networks, within-host models, data analysis...). So much to learn and great scientific discussions! www.math.su.se/espidam
math.su.se
Matematiska institutionen
2nd ESPIDAM is a summer program for PhD students, Post Docs, Public Health scientists and others interested, supported by Stockholm University and the Nordic Research Council NordForsk.
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Simon Cauchemez @scauchemez.bsky.social · 30/01/2025
Odin is a such a fantastic tool for infectious disease modelers! Great opportunity to learn more about it!
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Reposted by Simon Cauchemez
Michael White @mtwhite.bsky.social · 27/01/2025
Exciting opportunity to work with the excellent @conniciavarella.bsky.social in sunny Montpellier in the south of France.
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Dr Roz Eggo @rozeggo.bsky.social · 21/01/2025
Looking for a position - postdoc, PhD, faculty - in infectious disease dynamics (broadly defined)? Follow @iddjobs.bsky.social and check IDDjobs.org This is a community site started in 2017 for open positions in our wide and varied field. Add your jobs, look for jobs, share opportunities!
Screenshot of IDDjobs.org showing the header description.
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Didier Mazel @amazeld.bsky.social · 08/12/2024
We are opening a call for applications 2025 – Creation of new junior research groups at the Institut Pasteur in Paris @pasteur.fr all details on our web site : research.pasteur.fr/en/call/call...
research.pasteur.fr
Call for applications 2025 – Creation of new research groups at the Institut Pasteur | Research - Institut Pasteur
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Nicolas Berrod @nicolasberrod.bsky.social · 21/01/2025
La directrice de l'Institut Pasteur prévient que "les maladies infectieuses ont toujours représenté un risque, mais elles sont aussi l’une des principales menaces de santé publique à l’avenir." Longue interview, morceaux choisis ⤵️ @leparisien.fr 1/12 www.leparisien.fr/so...
leparisien.fr
« Désespérant » : face au « chaos écologique », la patronne de l’Institut Pasteur tire la sonnette d’alarme - Le Parisien
EXCLUSIF. Maladies infectieuses, vaccinations, origine des pathologies, sous-investissement dans la recherche… La directrice de l’Institut P
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Institut Pasteur | 130 years of biomedical research @pasteur.fr · 21/01/2025
🌍 "Le vivant est la nouvelle frontière." ✨ Découvrez le plan stratégique "Pasteur 2030" et la vision de l’Institut Pasteur pour une science au service de la santé humaine. #Pasteur2030
pasteur.fr
Plan stratégique “Pasteur 2030”
Renforcer notre rôle de premier institut au monde dans la recherche sur le vivant, contre les maladies infectieuses et pour la santé des populations.
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Reposted by Simon Cauchemez
Institut Pasteur | 130 years of biomedical research @pasteur.fr · 16/01/2025
The Institut Pasteur has decided to leave X (formerly Twitter) to join BlueSky! 🦋 The Institut Pasteur made this decision due to several serious issues observed on the X platform since its acquisition. Join us here to continue advocating for science. www.pasteur.fr/en/home/pres...
pasteur.fr
Institut Pasteur decides to leave X
The Institut Pasteur, a research organization which for more than 130 years has been committed to tackling infectious diseases, sharing knowledge and defending science, has decided to leave X because ...
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Reposted by Simon Cauchemez
Institut Pasteur | 130 years of biomedical research @pasteur.fr · 14/01/2025
Welcome to the official Bluesky page of the Institut Pasteur! 🔬 Explore with us the frontiers of biomedical research 🧪 Follow us to uncover groundbreaking discoveries 💡 Share knowledge for global health 🌍 Join a community passionate about progress and open science.
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Ilan Schwartz @germhuntermd.bsky.social · 25/12/2024
Here are a couple ID Modelling packs if that helps. bsky.app/profile/scau...
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Infectious Disease Tracker @hmpxvt.bsky.social · 17/12/2024
⚠️ BREAKING: The "mystery outbreak" in the Democratic Republic of Congo has been identified as caused by severe malaria, according to Reuters.
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Infectious Disease Tracker @hmpxvt.bsky.social · 17/12/2024
www.reuters.com/world/africa...
reuters.com
Congo's health ministry says unknown disease is severe malaria
Democratic Republic of Congo's health ministry said on Tuesday that a previously unidentified disease circulating in the country's Panzi health zone is a severe form of malaria.
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Moritz Kraemer @mugkraemer.bsky.social · 12/12/2024
New study on dengue importation dynamics in Africa combining passenger flight, suitability, and seasonal transmission dynamics. Led by Jenicca Poongavanan and Houriiyah Tegally. www.sciencedirect.com/science/arti...
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Simon Cauchemez @scauchemez.bsky.social · 16/12/2024
Great opportunity to start your own research group at @pasteur.fr. Such an exciting environment to work in!
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Kai Kupferschmidt @kakape.bsky.social · 14/12/2024
Sadly, it’s a good time to once again share this amazing infographic that we ran at @science.org more than 7 years ago 🧪 #IDsky www.science.org/content/arti...
science.org
Here's the visual proof of why vaccines do more good than harm
See year by year how vaccines beat back nine dangerous infectious diseases
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Science Magazine @science.org · 12/12/2024
Science’s 2024 Breakthrough of the Year is lenacapavir, an injectable drug that demonstrated remarkable success at preventing HIV infection with one shot every 6 months. Learn more about this year's #BOTY and other big advances in science: scim.ag/3BrCtUn
Science’s 2024 Breakthrough of the Year is lenacapavir, an injectable drug that demonstrated remarkable success at preventing HIV infection with one shot every 6 months. The drug attaches to the lattice-like capsid proteins that shield the virus’s genetic material—a mechanism that could inspire other antivirals. Lenacapavir could help end the HIV/AIDS epidemic, but that will hinge on access for those who need it most.
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