Sen Pei
@senpei.bsky.social
Asst Prof @ColumbiaMSPH. A mix of Infectious Diseases, Environmental Health, Network Science & Complex Systems. Views are my own.
Website: https://senpei-cu.github.io/
Website: https://senpei-cu.github.io/
Sharing our new study on identifying asymptomatic carriers of antimicrobial-resistant organisms (AMROs) in hospitals, out in @natcomms.nature.com. We combine patient mobility, clinical cultures, EHR, and genomics to identify hidden AMRO carriers. #AMR #HAI #HospitalEpi
Link 👉 rdcu.be/eQKKF
1/
Link 👉 rdcu.be/eQKKF
1/
November 19, 2025 at 8:23 PM
Sharing our new study on identifying asymptomatic carriers of antimicrobial-resistant organisms (AMROs) in hospitals, out in @natcomms.nature.com. We combine patient mobility, clinical cultures, EHR, and genomics to identify hidden AMRO carriers. #AMR #HAI #HospitalEpi
Link 👉 rdcu.be/eQKKF
1/
Link 👉 rdcu.be/eQKKF
1/
A super interesting study on how ants alter their nest networks to prevent epidemics! Network topology metrics were used to measure the effect on disease transmission.
www.science.org/doi/full/10....
www.science.org/doi/full/10....
November 14, 2025 at 4:27 AM
A super interesting study on how ants alter their nest networks to prevent epidemics! Network topology metrics were used to measure the effect on disease transmission.
www.science.org/doi/full/10....
www.science.org/doi/full/10....
Excellent work on the ecology and spread of H5N1 in North America 👉
Our lab's paper describing the North American H5N1 epizootic is out now in Nature! So thrilled to have this out, and congratulations to @lambod50.bsky.social for all the fantastic work on this: www.nature.com/articles/s41...
Ecology and spread of the North American H5N1 epizootic - Nature
The panzootic of highly pathogenic H5N1 since 2021 was driven by around nine introductions into the Atlantic and Pacific flyways, followed by rapid dissemination through wild migratory birds, primaril...
www.nature.com
November 12, 2025 at 7:59 PM
Excellent work on the ecology and spread of H5N1 in North America 👉
Fantastic talk by Dr. Holden Thorp, Editor-in-Chief of Science, on the future of scientific research. Especially inspiring to hear how many scientific giants pushed forward even when others tried to stop them. In times of uncertainty and challenge, do the work.
November 11, 2025 at 6:29 PM
Fantastic talk by Dr. Holden Thorp, Editor-in-Chief of Science, on the future of scientific research. Especially inspiring to hear how many scientific giants pushed forward even when others tried to stop them. In times of uncertainty and challenge, do the work.
Our group is presenting at the MIDAS Network Annual Meeting! I will present on reconstructing the early spatial spread of pandemics in the US. Dr. Qing Yao will discuss the use of GNN to predict adaptive mobility for improving epidemic forecasts. Welcome to join us! @midas-network.bsky.social
November 4, 2025 at 12:54 PM
Our group is presenting at the MIDAS Network Annual Meeting! I will present on reconstructing the early spatial spread of pandemics in the US. Dr. Qing Yao will discuss the use of GNN to predict adaptive mobility for improving epidemic forecasts. Welcome to join us! @midas-network.bsky.social
Oof, this is a tough one...
October 27, 2025 at 1:40 PM
Oof, this is a tough one...
Fall is coming. Enjoy a warm and colorful afternoon in the woods. 🍁
October 7, 2025 at 7:47 PM
Fall is coming. Enjoy a warm and colorful afternoon in the woods. 🍁
Hurricanes don’t stop at the coast. Our recent study, published in Environ Res Lett, shows inland communities are less likely to evacuate, leaving them more vulnerable as storms like Helene bring historic flooding and loss of life.
Paper 👉 doi.org/10.1088/1748...
Paper 👉 doi.org/10.1088/1748...
Adaptive mobility responses during Hurricanes Helene and Milton in 2024 - IOPscience
Adaptive mobility responses during Hurricanes Helene and Milton in 2024, Yao, Qing, Lynch, Victoria D., Liu, Molei, Wu, Xiao, Parks, Robbie, Pei, Sen
doi.org
October 6, 2025 at 3:31 PM
Hurricanes don’t stop at the coast. Our recent study, published in Environ Res Lett, shows inland communities are less likely to evacuate, leaving them more vulnerable as storms like Helene bring historic flooding and loss of life.
Paper 👉 doi.org/10.1088/1748...
Paper 👉 doi.org/10.1088/1748...
🚨 JOB ALERT! Our group is recruiting a postdoc to develop novel methodologies for early outbreak detection and inference using AI/ML, modeling, and data science. This is a multi-year position providing stable research support. Welcome to apply and share with others!
👉 apply.interfolio.com/173722
👉 apply.interfolio.com/173722
September 12, 2025 at 2:35 PM
🚨 JOB ALERT! Our group is recruiting a postdoc to develop novel methodologies for early outbreak detection and inference using AI/ML, modeling, and data science. This is a multi-year position providing stable research support. Welcome to apply and share with others!
👉 apply.interfolio.com/173722
👉 apply.interfolio.com/173722
So proud to support Nidhi Ram’s presentation in the Science Research Fellows program! Nidhi is a freshman and an SFR fellow, a prestigious four-year designation for some of Columbia’s most promising science students. Truly impressed by the intellect, maturity and academic ability of all fellows.
July 30, 2025 at 4:13 PM
So proud to support Nidhi Ram’s presentation in the Science Research Fellows program! Nidhi is a freshman and an SFR fellow, a prestigious four-year designation for some of Columbia’s most promising science students. Truly impressed by the intellect, maturity and academic ability of all fellows.
Reposted by Sen Pei
A small team of us at Columbia (Sen Pei, Qing Yao, and me) collaborated with @washingtonpost.com to create a data-driven story about Hurricane Helene flooding and lack of evacuation added to the severe impacts:
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
July 22, 2025 at 1:22 PM
A small team of us at Columbia (Sen Pei, Qing Yao, and me) collaborated with @washingtonpost.com to create a data-driven story about Hurricane Helene flooding and lack of evacuation added to the severe impacts:
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
Are we prepared for intensifying and expanding disasters caused by climate change? How to plan for floods that we’ve never seen in our lives? Read this fantastic story in the Washington Post, including our mobility analysis during Hurricane Helene in 2024. 1/
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
A new era of floods has arrived. America isn’t prepared.
A Washington Post investigation reveals why so few people evacuated in the state hit hardest by last year’s deadliest disaster.
www.washingtonpost.com
July 22, 2025 at 3:28 PM
Are we prepared for intensifying and expanding disasters caused by climate change? How to plan for floods that we’ve never seen in our lives? Read this fantastic story in the Washington Post, including our mobility analysis during Hurricane Helene in 2024. 1/
www.washingtonpost.com/climate-envi...
www.washingtonpost.com/climate-envi...
First day at SMB 2025 @smbmathbiology.bsky.social in the beautiful city of Edmonton! Today, we have a minisymposium "Scenario Modeling to Inform Public Policymaking" (10:20 am and 4 pm) with excellent talks on bridging mathematical models and policymaking. Welcome to stop by and join the discussion!
July 14, 2025 at 2:01 PM
First day at SMB 2025 @smbmathbiology.bsky.social in the beautiful city of Edmonton! Today, we have a minisymposium "Scenario Modeling to Inform Public Policymaking" (10:20 am and 4 pm) with excellent talks on bridging mathematical models and policymaking. Welcome to stop by and join the discussion!
Excited to see this paper out in Science Advances, led by Prof. Alan Cohen @cusciofhealth.bsky.social. The definition of health should go beyond being free of disease. Our human body works as a complex dynamical system, and measuring health requires a perspective from complex systems.
We intuitively know when we're healthy, yet science struggles to measure it. Our new paper bridges this gap by defining 'intrinsic health' as an emergent property of our biology. This could transform medicine & public health. #ParadigmShift
www.science.org/doi/10.1126/...
www.science.org/doi/10.1126/...
Intrinsic health as a foundation for a science of health
Intrinsic health is an objective, measurable construct describing the biological capacity of the organism to self-maintain.
www.science.org
June 20, 2025 at 1:18 PM
Excited to see this paper out in Science Advances, led by Prof. Alan Cohen @cusciofhealth.bsky.social. The definition of health should go beyond being free of disease. Our human body works as a complex dynamical system, and measuring health requires a perspective from complex systems.
Sharing our new study out in PLoS Comput Biol.
We developed a behavior-driven epidemic model to generate neighborhood-level COVID-19 forecasts across NYC. We used mobile foot traffic data to measure how and where people mix and forecast local spread.
Read here: doi.org/10.1371/jour...
We developed a behavior-driven epidemic model to generate neighborhood-level COVID-19 forecasts across NYC. We used mobile foot traffic data to measure how and where people mix and forecast local spread.
Read here: doi.org/10.1371/jour...
April 30, 2025 at 3:50 PM
Sharing our new study out in PLoS Comput Biol.
We developed a behavior-driven epidemic model to generate neighborhood-level COVID-19 forecasts across NYC. We used mobile foot traffic data to measure how and where people mix and forecast local spread.
Read here: doi.org/10.1371/jour...
We developed a behavior-driven epidemic model to generate neighborhood-level COVID-19 forecasts across NYC. We used mobile foot traffic data to measure how and where people mix and forecast local spread.
Read here: doi.org/10.1371/jour...
So glad to have @jgyou.bsky.social give an intriguing lecture on contagion modeling and network inference in our network science class!
April 17, 2025 at 8:40 PM
So glad to have @jgyou.bsky.social give an intriguing lecture on contagion modeling and network inference in our network science class!
Reposted by Sen Pei
We are Science of Health, a collaborative initiative led by faculty from Columbia University—scientists, physicians, and theorists transforming how we understand health, from cellular biology to daily life.
Our aim: nothing less than a revolution in biomedicine.
#SystemsOfHealth #HealthRevolution
Our aim: nothing less than a revolution in biomedicine.
#SystemsOfHealth #HealthRevolution
April 13, 2025 at 10:24 PM
We are Science of Health, a collaborative initiative led by faculty from Columbia University—scientists, physicians, and theorists transforming how we understand health, from cellular biology to daily life.
Our aim: nothing less than a revolution in biomedicine.
#SystemsOfHealth #HealthRevolution
Our aim: nothing less than a revolution in biomedicine.
#SystemsOfHealth #HealthRevolution
It was great to have @danielmalinsky.bsky.social give an excellent lecture on casual graph discovery in my network science class today!
April 3, 2025 at 8:23 PM
It was great to have @danielmalinsky.bsky.social give an excellent lecture on casual graph discovery in my network science class today!
I decide to put down my work and have some ice cream tonight.
February 10, 2025 at 4:09 AM
I decide to put down my work and have some ice cream tonight.
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Joshua Warren from Yale on 2/11 at 1 pm EST! Open to the public over Zoom.
For more information and registration: events.columbia.edu/cal/event/ev...
For more information and registration: events.columbia.edu/cal/event/ev...
February 4, 2025 at 2:25 PM
Welcome to join Columbia Mailman seminar series on infectious disease modeling featuring Prof. Joshua Warren from Yale on 2/11 at 1 pm EST! Open to the public over Zoom.
For more information and registration: events.columbia.edu/cal/event/ev...
For more information and registration: events.columbia.edu/cal/event/ev...
Thinking about the research environment for early-career PIs (like me). Thanks to rising costs and decreasing funding, groups already have to operate under the critical condition that can barely support daily work. Any tiny perturbations may collapse this system. Now comes this huge disruption...
January 30, 2025 at 1:42 AM
Thinking about the research environment for early-career PIs (like me). Thanks to rising costs and decreasing funding, groups already have to operate under the critical condition that can barely support daily work. Any tiny perturbations may collapse this system. Now comes this huge disruption...
January 21, 2025 at 3:15 PM
We will kick off the Columbia Mailman seminar series on infectious disease modeling in the spring semester with a fantastic talk by Prof. Marc Lipsitch from @harvardchanschool.bsky.social ! Welcome to join in person or over Zoom on 1/21.
Register here: events.columbia.edu/cal/event/ev...
Register here: events.columbia.edu/cal/event/ev...
January 14, 2025 at 5:40 PM
We will kick off the Columbia Mailman seminar series on infectious disease modeling in the spring semester with a fantastic talk by Prof. Marc Lipsitch from @harvardchanschool.bsky.social ! Welcome to join in person or over Zoom on 1/21.
Register here: events.columbia.edu/cal/event/ev...
Register here: events.columbia.edu/cal/event/ev...
Maybe linking climate change to money is the best way to convince some people that climate change is real.
As the planet warms, insurance companies are dropping homeowners in communities they deem too dangerous because of wildfires, hurricanes and other threats. Now, for the first time, the scale of that pullback is becoming public. nyti.ms/41EOpNc
December 19, 2024 at 2:16 AM
Maybe linking climate change to money is the best way to convince some people that climate change is real.