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Simon Cauchemez

@scauchemez.bsky.social

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

3,027 Followers  |  901 Following  |  59 Posts  |  Joined: 09.11.2024  |  1.6072

Latest posts by scauchemez.bsky.social on Bluesky

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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...

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

12.09.2025 09:31 — 👍 12    🔁 7    💬 0    📌 0
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« 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...

Santé Publique France est menacée. www.lemonde.fr/sciences/art...

09.07.2025 05:36 — 👍 17    🔁 9    💬 3    📌 0

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

01.07.2025 08:56 — 👍 40    🔁 22    💬 4    📌 1

Just few days left to apply to one of these postdoc positions in my infectious disease modelling Unit at @pasteur.fr in Paris!

23.06.2025 05:24 — 👍 25    🔁 22    💬 1    📌 0

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!

13.06.2025 15:54 — 👍 5    🔁 0    💬 0    📌 0
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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...

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...

05.06.2025 05:22 — 👍 55    🔁 65    💬 0    📌 3
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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... 🧪🦠

08.05.2025 09:13 — 👍 19    🔁 5    💬 1    📌 1
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📊💉 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

24.03.2025 10:12 — 👍 9    🔁 5    💬 1    📌 0
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Latest post on measles vaccines and the fallacy of ‘one more study to settle things’: kucharski.substack.com/p/a-wild-vac...

13.03.2025 02:26 — 👍 173    🔁 52    💬 5    📌 0
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Big turnout today in Paris to show solidarity with US-based scientists ❤️ 🗽 #StandUpforScienceFrance @pasteur.fr

07.03.2025 15:54 — 👍 9    🔁 2    💬 0    📌 0
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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

06.03.2025 14:24 — 👍 264    🔁 82    💬 3    📌 5
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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...

www.pasteur.fr/fr/espace-pr... Un sujet quelque peu dans l'air du temps.

06.03.2025 11:26 — 👍 1    🔁 1    💬 0    📌 0
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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.

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 🥳

05.03.2025 16:48 — 👍 41    🔁 17    💬 2    📌 2
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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...

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....

25.02.2025 10:42 — 👍 16    🔁 8    💬 1    📌 0
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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.

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...

20.02.2025 10:13 — 👍 69    🔁 31    💬 3    📌 5
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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...

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 🧵

12.02.2025 11:56 — 👍 177    🔁 76    💬 5    📌 4
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Simplicity is a key strength of the package: it only takes a few lines of code to run and compare different types of models! Dev by Nathanael Hoze, with contributions from Marga Pons, @jessmetcalf.bsky.social, @mtwhite.bsky.social, @hsalje.bsky.social.

11.02.2025 16:21 — 👍 4    🔁 1    💬 1    📌 0
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Rsero is useful to determine optimal designs for serosurveys depending on context. For example, should you target the general population, children <10y.o. or <20y.o.? This will depend on the expected annual probability of infection (FOI)...

11.02.2025 16:21 — 👍 0    🔁 0    💬 1    📌 0
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You can also use Rsero to evaluate the impact of interventions, here mass drug administration on Trachoma prevalence in Nepal.

11.02.2025 16:21 — 👍 0    🔁 0    💬 1    📌 0
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Rsero can assess how infection risk may vary with individual characteristics, e.g. gender and location.

11.02.2025 16:21 — 👍 0    🔁 0    💬 1    📌 0
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Rsero can help you determine if your data are more consistent with a scenario of endemic ‘constant’ circulation, or with the occurrence of 1, 2 or 3 outbreaks in the last 50 years. It can estimate the year when these outbreaks occurred.

11.02.2025 16:21 — 👍 1    🔁 0    💬 1    📌 0
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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...

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...

11.02.2025 16:21 — 👍 49    🔁 16    💬 2    📌 1
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.

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

04.02.2025 09:38 — 👍 9    🔁 6    💬 0    📌 0

Odin is a such a fantastic tool for infectious disease modelers! Great opportunity to learn more about it!

30.01.2025 18:49 — 👍 5    🔁 0    💬 0    📌 0

Exciting opportunity to work with the excellent @conniciavarella.bsky.social in sunny Montpellier in the south of France.

27.01.2025 09:48 — 👍 5    🔁 7    💬 0    📌 0

Done!

23.01.2025 13:19 — 👍 1    🔁 0    💬 0    📌 0
Screenshot of IDDjobs.org showing the header description.

Screenshot of IDDjobs.org showing the header description.

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!

21.01.2025 21:22 — 👍 36    🔁 28    💬 1    📌 1
Call for applications 2025 – Creation of new research groups at the Institut Pasteur | Research - Institut Pasteur

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...

08.12.2024 15:04 — 👍 80    🔁 98    💬 1    📌 5
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« 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

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...

21.01.2025 08:04 — 👍 71    🔁 33    💬 1    📌 1
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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.

🌍 "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

21.01.2025 11:04 — 👍 38    🔁 10    💬 1    📌 1

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