Dr. Casey Middleton
@caseymiddleton.bsky.social
Infectious disease modeling
Views are my own
Views are my own
Reposted by Dr. Casey Middleton
6/ This is not a debate. That data is crystal clear.
Since the 1996 Port Arthur massacre, Australia’s buyback program and strict licensing have kept mass shootings to ~0–1 per year.
The U.S. has about 400–650 mass shootings annually and over 46,000 gun deaths each year.
It’s not even close.
Since the 1996 Port Arthur massacre, Australia’s buyback program and strict licensing have kept mass shootings to ~0–1 per year.
The U.S. has about 400–650 mass shootings annually and over 46,000 gun deaths each year.
It’s not even close.
December 15, 2025 at 11:53 PM
6/ This is not a debate. That data is crystal clear.
Since the 1996 Port Arthur massacre, Australia’s buyback program and strict licensing have kept mass shootings to ~0–1 per year.
The U.S. has about 400–650 mass shootings annually and over 46,000 gun deaths each year.
It’s not even close.
Since the 1996 Port Arthur massacre, Australia’s buyback program and strict licensing have kept mass shootings to ~0–1 per year.
The U.S. has about 400–650 mass shootings annually and over 46,000 gun deaths each year.
It’s not even close.
Reposted by Dr. Casey Middleton
The MIDAS Trainee Executive Committee is recruiting new members for 2026! 🤓
This is a great opportunity for grad students & postdocs in infectious disease modeling to gain experience organizing events & connect with peers.
Applications are due by 9am ET on 1/1/2026, link in flyer & alt text.
This is a great opportunity for grad students & postdocs in infectious disease modeling to gain experience organizing events & connect with peers.
Applications are due by 9am ET on 1/1/2026, link in flyer & alt text.
December 8, 2025 at 7:50 PM
The MIDAS Trainee Executive Committee is recruiting new members for 2026! 🤓
This is a great opportunity for grad students & postdocs in infectious disease modeling to gain experience organizing events & connect with peers.
Applications are due by 9am ET on 1/1/2026, link in flyer & alt text.
This is a great opportunity for grad students & postdocs in infectious disease modeling to gain experience organizing events & connect with peers.
Applications are due by 9am ET on 1/1/2026, link in flyer & alt text.
Reposted by Dr. Casey Middleton
Interdisciplinary scientists’ notes apps be like:
- VEdirect vs VEtotal
- d/dx(a^x) = ln(x) a^x
- grocery list
- to read: doi.org/…
- how to exit vim
- VEdirect vs VEtotal
- d/dx(a^x) = ln(x) a^x
- grocery list
- to read: doi.org/…
- how to exit vim
December 4, 2025 at 4:04 PM
Interdisciplinary scientists’ notes apps be like:
- VEdirect vs VEtotal
- d/dx(a^x) = ln(x) a^x
- grocery list
- to read: doi.org/…
- how to exit vim
- VEdirect vs VEtotal
- d/dx(a^x) = ln(x) a^x
- grocery list
- to read: doi.org/…
- how to exit vim
More than 75% of food crops depend on pollinating insects. What a striking cartoon to show the impact of dwindling insect populations 🐝
Más del 75% de los cultivos alimentarios dependen de insectos polinizadores...
December 4, 2025 at 2:24 AM
More than 75% of food crops depend on pollinating insects. What a striking cartoon to show the impact of dwindling insect populations 🐝
When they ask you to bring your talk on a flash drive, and you’re a professional, so you use your Tweety Bird flash drive #Epidemics10
December 3, 2025 at 7:05 PM
When they ask you to bring your talk on a flash drive, and you’re a professional, so you use your Tweety Bird flash drive #Epidemics10
Reposted by Dr. Casey Middleton
We’ve just released Epistorm-Mix, a new open dataset on how people in the U.S. mix across ages and settings in the post-COVID era.
📊 Contact-level data + contact matrices
Built for epidemic modeling & forecasting
Fully open data & code
🔗 www.epistorm.org/data/epistor...
📊 Contact-level data + contact matrices
Built for epidemic modeling & forecasting
Fully open data & code
🔗 www.epistorm.org/data/epistor...
Epistorm-Mix: Mapping Social Contact Patterns in the Post-Pandemic United States
Epistorm-Mix provides individual-level contact data and contacts patterns characterization relevant for the spread of respiratory infectious diseases within the US population.
www.epistorm.org
November 25, 2025 at 3:11 PM
We’ve just released Epistorm-Mix, a new open dataset on how people in the U.S. mix across ages and settings in the post-COVID era.
📊 Contact-level data + contact matrices
Built for epidemic modeling & forecasting
Fully open data & code
🔗 www.epistorm.org/data/epistor...
📊 Contact-level data + contact matrices
Built for epidemic modeling & forecasting
Fully open data & code
🔗 www.epistorm.org/data/epistor...
Reposted by Dr. Casey Middleton
I've been on the road so I'm behind the times—but if you wanted to destroy US science, I can think of no more expedient action.
Blatant unconstitutionality aside, fuck this backwards forwards and sideways.
www.science.org/content/article/u-s-congress-considers-sweeping-ban-chinese-collaborations
Blatant unconstitutionality aside, fuck this backwards forwards and sideways.
www.science.org/content/article/u-s-congress-considers-sweeping-ban-chinese-collaborations
November 14, 2025 at 3:03 AM
I've been on the road so I'm behind the times—but if you wanted to destroy US science, I can think of no more expedient action.
Blatant unconstitutionality aside, fuck this backwards forwards and sideways.
www.science.org/content/article/u-s-congress-considers-sweeping-ban-chinese-collaborations
Blatant unconstitutionality aside, fuck this backwards forwards and sideways.
www.science.org/content/article/u-s-congress-considers-sweeping-ban-chinese-collaborations
Reposted by Dr. Casey Middleton
Every fall, for the last 13 years, I have worked with CDC and WHO colleagues on a report in MMWR to update the estimates of the global burden of measles disease and mortality. This year we were already planning to publish in WER because of restrictions on communication between WHO and CDC.
October 11, 2025 at 6:54 PM
Every fall, for the last 13 years, I have worked with CDC and WHO colleagues on a report in MMWR to update the estimates of the global burden of measles disease and mortality. This year we were already planning to publish in WER because of restrictions on communication between WHO and CDC.
Reposted by Dr. Casey Middleton
1/ Hey, do you need some #goodnews? I know I do. Between the noise and the chaos, it helps to stop and remember what progress actually looks like.
Here are four public health wins to give you some good news for the week 👇
Here are four public health wins to give you some good news for the week 👇
October 9, 2025 at 5:55 PM
1/ Hey, do you need some #goodnews? I know I do. Between the noise and the chaos, it helps to stop and remember what progress actually looks like.
Here are four public health wins to give you some good news for the week 👇
Here are four public health wins to give you some good news for the week 👇
Why, in this incredible world of technological advancements, are published inline equations still blurry? 😵💫
October 1, 2025 at 6:25 PM
Why, in this incredible world of technological advancements, are published inline equations still blurry? 😵💫
#Vaccines save babies! And they do it so well when we allocate resources to achieve high vaccination rates instead of meh vaccination rates 💉
A story about how complicated something as simple as vaccination is, everywhere. In Fall of 2024, I was part of a team that argued to the WHO to recommend that rubella vaccination be added to the national schedule for all countries. That recommendation was approved, and we were elated. 1/
September 19, 2025 at 2:26 PM
#Vaccines save babies! And they do it so well when we allocate resources to achieve high vaccination rates instead of meh vaccination rates 💉
Reposted by Dr. Casey Middleton
1/ Today and tomorrow, #ACIP —the external body that sets vaccine policy—is holding a special session. One item on the agenda is the highly anticipated vote for the Covid vaccine. We’re expecting VAERS data to be misused to suggest 25 pediatric deaths were caused by the vaccine. Here are the facts👇
September 18, 2025 at 3:17 PM
1/ Today and tomorrow, #ACIP —the external body that sets vaccine policy—is holding a special session. One item on the agenda is the highly anticipated vote for the Covid vaccine. We’re expecting VAERS data to be misused to suggest 25 pediatric deaths were caused by the vaccine. Here are the facts👇
I am pretty sure I had COVID-19 earlier this month, but I tested negative (by RDT) on days 1 & 3 of infection.
How do you satisfy your academic curiosities about what pathogen has infected you without spending tons of $$ on diagnostic tests?
How do you satisfy your academic curiosities about what pathogen has infected you without spending tons of $$ on diagnostic tests?
September 17, 2025 at 8:29 PM
I am pretty sure I had COVID-19 earlier this month, but I tested negative (by RDT) on days 1 & 3 of infection.
How do you satisfy your academic curiosities about what pathogen has infected you without spending tons of $$ on diagnostic tests?
How do you satisfy your academic curiosities about what pathogen has infected you without spending tons of $$ on diagnostic tests?
I see news outlets reporting on falling ‘fertility rates,’ and I find this terminology non-intuitive… and potentially problematic.
Falling fertility rates tell us about reductions in women’s birth rates, not reductions in women’s fertility!
Let me explain:
Falling fertility rates tell us about reductions in women’s birth rates, not reductions in women’s fertility!
Let me explain:
August 1, 2025 at 5:44 PM
I see news outlets reporting on falling ‘fertility rates,’ and I find this terminology non-intuitive… and potentially problematic.
Falling fertility rates tell us about reductions in women’s birth rates, not reductions in women’s fertility!
Let me explain:
Falling fertility rates tell us about reductions in women’s birth rates, not reductions in women’s fertility!
Let me explain:
Reason #2,946 to keep funding science:
color mix undoification 🤯
color mix undoification 🤯
Colored droplets in corn syrup seemingly blended together can be returned to their original state by reversing the direction of mixing, a form of laminar flow called "Stokes flow".
Credit: UNM Physics & Astronomy
Credit: UNM Physics & Astronomy
July 15, 2025 at 3:48 AM
Reason #2,946 to keep funding science:
color mix undoification 🤯
color mix undoification 🤯
Reposted by Dr. Casey Middleton
Sang Woo (Daniel) Park and I are excited to share a new preprint, "Susceptible host dynamics explain pathogen resilience to perturbations" [1/8]
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
June 23, 2025 at 9:07 PM
Sang Woo (Daniel) Park and I are excited to share a new preprint, "Susceptible host dynamics explain pathogen resilience to perturbations" [1/8]
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
I don’t see enough people talking about how hard it is to search for this emoji 💁♀️
WHAT AM I SUPPOSED TO SEARCH FOR PLEASE TELL ME
WHAT AM I SUPPOSED TO SEARCH FOR PLEASE TELL ME
May 28, 2025 at 10:28 PM
I don’t see enough people talking about how hard it is to search for this emoji 💁♀️
WHAT AM I SUPPOSED TO SEARCH FOR PLEASE TELL ME
WHAT AM I SUPPOSED TO SEARCH FOR PLEASE TELL ME
Reposted by Dr. Casey Middleton
🧵1/N New study published in @jama.com on re-emergence of vaccine-eliminated infectious diseases under declining vaccination in the US. We model long-term risk and conditions for return to endemicity for measles, rubella, polio, & diphtheria. Collab w/ @Mathewkiang.com jamanetwork.com/journals/jam...
April 24, 2025 at 3:40 PM
🧵1/N New study published in @jama.com on re-emergence of vaccine-eliminated infectious diseases under declining vaccination in the US. We model long-term risk and conditions for return to endemicity for measles, rubella, polio, & diphtheria. Collab w/ @Mathewkiang.com jamanetwork.com/journals/jam...
Reposted by Dr. Casey Middleton
Interesting new pre-print on test-negative designs and implications for estimating correlates of protection: www.medrxiv.org/content/10.1...
April 10, 2025 at 2:00 PM
Interesting new pre-print on test-negative designs and implications for estimating correlates of protection: www.medrxiv.org/content/10.1...
Reposted by Dr. Casey Middleton
New commentary on pandemic surveillance and the need to have it be repeatable/continuous for updating, out in @pnas.org with Freya Shearer of Uni Melbourne: www.pnas.org/doi/10.1073/...
The importance of playing the long game when it comes to pandemic surveillance | PNAS
The importance of playing the long game when it comes to pandemic surveillance
www.pnas.org
April 9, 2025 at 6:24 PM
New commentary on pandemic surveillance and the need to have it be repeatable/continuous for updating, out in @pnas.org with Freya Shearer of Uni Melbourne: www.pnas.org/doi/10.1073/...
A glimmer of good news amidst the chaos! On Monday, I successfully defended my PhD focused on infectious disease modeling. And yes, my thesis title is an acronym for my last name.
With gratitude to the incredible friends and mentors who got me here…
Dr. Casey Middleton, reporting for duty 🫡🦠
With gratitude to the incredible friends and mentors who got me here…
Dr. Casey Middleton, reporting for duty 🫡🦠
April 9, 2025 at 8:16 PM
A glimmer of good news amidst the chaos! On Monday, I successfully defended my PhD focused on infectious disease modeling. And yes, my thesis title is an acronym for my last name.
With gratitude to the incredible friends and mentors who got me here…
Dr. Casey Middleton, reporting for duty 🫡🦠
With gratitude to the incredible friends and mentors who got me here…
Dr. Casey Middleton, reporting for duty 🫡🦠
The cycle of dissertation writing:
1. Don’t sleep well
2. Too busy for nap
3. Drink afternoon coffee
🔁 Repeat
1. Don’t sleep well
2. Too busy for nap
3. Drink afternoon coffee
🔁 Repeat
April 4, 2025 at 2:49 PM
The cycle of dissertation writing:
1. Don’t sleep well
2. Too busy for nap
3. Drink afternoon coffee
🔁 Repeat
1. Don’t sleep well
2. Too busy for nap
3. Drink afternoon coffee
🔁 Repeat