David Hartley
@hartleydm.bsky.social
Mathematical epidemiologist working on complex systems, infectious disease, and public health.
Reposted by David Hartley
Last weekend #USDA announced that Wisconsin had detected #H5N1 #birdflu in a dairy cow herd. Today the agency revealed that genetic analysis of virus from the herd shows this event was the result of a new spillover from "wildlife." www.aphis.usda.gov/news/agency-...
Update: Genetic Sequencing Results for Wisconsin Dairy Herd Detection of Highly Pathogenic Avian Influenza | Animal and Plant Health Inspection Service
Contact: [email protected]
www.aphis.usda.gov
December 20, 2025 at 1:20 AM
Last weekend #USDA announced that Wisconsin had detected #H5N1 #birdflu in a dairy cow herd. Today the agency revealed that genetic analysis of virus from the herd shows this event was the result of a new spillover from "wildlife." www.aphis.usda.gov/news/agency-...
CDC officials urge US flu vaccination after record child deaths last year
www.theguardian.com/us-news/2025...
www.theguardian.com/us-news/2025...
CDC officials urge US flu vaccination after record child deaths last year
Americans told ‘time to get vaccinated is now’ as concerning mutation of influenza virus circulates in US
www.theguardian.com
December 18, 2025 at 4:29 PM
CDC officials urge US flu vaccination after record child deaths last year
www.theguardian.com/us-news/2025...
www.theguardian.com/us-news/2025...
Reposted by David Hartley
Many physicists have come to believe that a mystery is unfolding in every microbe, animal, and human—one that could redefine the field for the next generation, Adam Frank writes.
A Physics Renaissance Is Coming
The field can no longer ignore the fundamental mystery posed by living things.
bit.ly
December 15, 2025 at 2:30 PM
Many physicists have come to believe that a mystery is unfolding in every microbe, animal, and human—one that could redefine the field for the next generation, Adam Frank writes.
Reposted by David Hartley
The measles outbreak in South Carolina is “accelerating” with no end in sight following Thanksgiving and other large gatherings, state health officials say.
South Carolina measles outbreak is 'accelerating,' driving hundreds into quarantine
Some students who remain unvaccinated are now in a second 21-day quarantine since the beginning of the school year.
nbcnews.to
December 10, 2025 at 10:20 PM
The measles outbreak in South Carolina is “accelerating” with no end in sight following Thanksgiving and other large gatherings, state health officials say.
Blaming some child deaths on covid shots, FDA vows stricter vaccine rules
www.washingtonpost.com/health/2025/...
www.washingtonpost.com/health/2025/...
Blaming some child deaths on covid shots, FDA vows stricter vaccine rules
Vinay Prasad, the nation’s top vaccine regulator, said his team concluded that coronavirus shots were linked to children’s deaths, necessitating a new approach.
www.washingtonpost.com
November 29, 2025 at 6:07 PM
Blaming some child deaths on covid shots, FDA vows stricter vaccine rules
www.washingtonpost.com/health/2025/...
www.washingtonpost.com/health/2025/...
Surging measles cases are 'fire alarm' warning that other diseases could be next
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Surging measles cases are 'fire alarm' warning that other diseases could be next
As measles cases continue to rise around the globe, the World Health Organization warns it's a signal that other disease outbreaks could soon follow.
www.nbcnews.com
November 28, 2025 at 2:47 PM
Surging measles cases are 'fire alarm' warning that other diseases could be next
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Reposted by David Hartley
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...
Economic evaluation of delaying the infant hepatitis B vaccination schedule
"Even brief delays in HepB vaccine initiation substantially increase HBV infections, adverse health outcomes, and health system costs."
@noelenelson.bsky.social
www.medrxiv.org/content/10.1...
"Even brief delays in HepB vaccine initiation substantially increase HBV infections, adverse health outcomes, and health system costs."
@noelenelson.bsky.social
www.medrxiv.org/content/10.1...
Economic evaluation of delaying the infant hepatitis B vaccination schedule
Introduction Children who acquire hepatitis B virus (HBV) infection in early childhood through perinatal, household or community exposures are at highest risk of all age groups for experiencing chroni...
www.medrxiv.org
November 25, 2025 at 4:24 PM
Economic evaluation of delaying the infant hepatitis B vaccination schedule
"Even brief delays in HepB vaccine initiation substantially increase HBV infections, adverse health outcomes, and health system costs."
@noelenelson.bsky.social
www.medrxiv.org/content/10.1...
"Even brief delays in HepB vaccine initiation substantially increase HBV infections, adverse health outcomes, and health system costs."
@noelenelson.bsky.social
www.medrxiv.org/content/10.1...
Reposted by David Hartley
CDC published the latest epidemiology on alpha gal syndrome early this year in @jamanetworkopen.com (open access) jamanetwork.com/journals/jam...
November 14, 2025 at 1:35 PM
CDC published the latest epidemiology on alpha gal syndrome early this year in @jamanetworkopen.com (open access) jamanetwork.com/journals/jam...
Warnings rise for U.S. as severe flu strain causes outbreaks in Canada, U.K.
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Warnings rise for U.S. as severe flu strain causes outbreaks in Canada, U.K.
A flu strain that emerged over the summer is causing "unprecedented" outbreaks in Japan, as well as in Canada and the U.K. The CDC hasn't provided insights on flu in the U.S. in nearly two months.
www.nbcnews.com
November 13, 2025 at 11:03 AM
Warnings rise for U.S. as severe flu strain causes outbreaks in Canada, U.K.
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
This tight-knit community was recovering from a cultlike leader. Then measles got in.
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
This tight-knit community was recovering from a cultlike leader. Then measles got in.
Years after the reign of Warren Jeffs, the Short Creek community on the Utah-Arizona border is focused on rebuilding. Missed vaccines were low on the list of priorities, until now.
www.nbcnews.com
November 1, 2025 at 11:31 AM
This tight-knit community was recovering from a cultlike leader. Then measles got in.
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Reposted by David Hartley
Diphtheria, a Once Vanquished Killer of Children, Is Resurgent www.nytimes.com/2025/10/27/h...
Diphtheria, a Once Vanquished Killer of Children, Is Resurgent
www.nytimes.com
October 27, 2025 at 9:36 PM
Diphtheria, a Once Vanquished Killer of Children, Is Resurgent www.nytimes.com/2025/10/27/h...
Reposted by David Hartley
Community-Acquired Respiratory Virus Infections: A Threat to Long-Term Survivors After Allogeneic Stem Cell Transplant?
#IDSky
#IDSky
Community-Acquired Respiratory Virus Infections: A Threat to Long-Term Survivors After Allogeneic Stem Cell Transplant?
Late community-acquired respiratory virus (CARV) infections in long-term allogeneic hematopoietic stem cell transplantation (allo-HCT) survivors carry sign
bit.ly
October 27, 2025 at 10:13 PM
Community-Acquired Respiratory Virus Infections: A Threat to Long-Term Survivors After Allogeneic Stem Cell Transplant?
#IDSky
#IDSky
Reposted by David Hartley
The ACIP meeting planned for 22-23 October has been indefinitely postponed. www.theguardian.com/us-news/2025...
Threat to US vaccines as CDC staff supporting key advisory panel laid off
Critics say scientists ‘held hostage’ by RFK Jr as changes mean vaccine development and guidance in peril
www.theguardian.com
October 27, 2025 at 9:18 PM
The ACIP meeting planned for 22-23 October has been indefinitely postponed. www.theguardian.com/us-news/2025...
Measles spreading beyond the center of the Utah-Arizona outbreak
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Measles spreading beyond the center of the Utah-Arizona outbreak
Cases are now popping up in more touristy areas of Utah, according to a health official.
www.nbcnews.com
October 22, 2025 at 11:44 PM
Measles spreading beyond the center of the Utah-Arizona outbreak
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
"We are definitely flying blind in a number of countries and regions that have insufficient surveillance systems for antimicrobial resistance."
www.cbsnews.com/news/superbu...
www.cbsnews.com/news/superbu...
Drug-resistant superbugs' spread surging, World Health Organization warns
The United Nations' health agency says the number of drug-resistant bacterial infections is surging, compromising life-saving treatments and rendering minor injuries and common infections potentially ...
www.cbsnews.com
October 16, 2025 at 1:03 PM
"We are definitely flying blind in a number of countries and regions that have insufficient surveillance systems for antimicrobial resistance."
www.cbsnews.com/news/superbu...
www.cbsnews.com/news/superbu...
In a crazy world, this: Why Poetry Belongs in the ICU
"Crises make us acutely aware of our mortality, triggering experiences of fear and isolation. While this pain is uniquely ours, poetry quietly affirms that we are not alone."
time.com/7325425/poet...
"Crises make us acutely aware of our mortality, triggering experiences of fear and isolation. While this pain is uniquely ours, poetry quietly affirms that we are not alone."
time.com/7325425/poet...
Why Poetry Belongs in the ICU
A doctor finds that poetry can be a powerful antidote to medical crises, offering meaning, hope, and healing.
time.com
October 15, 2025 at 2:30 PM
In a crazy world, this: Why Poetry Belongs in the ICU
"Crises make us acutely aware of our mortality, triggering experiences of fear and isolation. While this pain is uniquely ours, poetry quietly affirms that we are not alone."
time.com/7325425/poet...
"Crises make us acutely aware of our mortality, triggering experiences of fear and isolation. While this pain is uniquely ours, poetry quietly affirms that we are not alone."
time.com/7325425/poet...
Reposted by David Hartley
#Chikungunya spread in New York by a home grown infected mosquito apnews.com/article/chik...
#medsky Important: #WestNile entered the US in New York and has now spread across the continent. Another mosquito-borne disease.
#medsky Important: #WestNile entered the US in New York and has now spread across the continent. Another mosquito-borne disease.
New York health officials confirm state's first locally acquired case of chikungunya virus
New York health officials have confirmed the state’s first locally acquired case of chikungunya virus and the first such case in the country in six years.
apnews.com
October 15, 2025 at 2:12 PM
#Chikungunya spread in New York by a home grown infected mosquito apnews.com/article/chik...
#medsky Important: #WestNile entered the US in New York and has now spread across the continent. Another mosquito-borne disease.
#medsky Important: #WestNile entered the US in New York and has now spread across the continent. Another mosquito-borne disease.
Reposted by David Hartley
Ugh... This study has existed for decades, providing valuable health data for all sorts of topics and publications. This is just more awful news. 🛟😷 Sociology medsky
CDC team running top survey on health and nutrition is laid off
NHANES has collected data on eating patterns, diabetes, and other common diseases for decades. The CDC team that runs it has been fired.
www.statnews.com
October 15, 2025 at 1:02 AM
Ugh... This study has existed for decades, providing valuable health data for all sorts of topics and publications. This is just more awful news. 🛟😷 Sociology medsky
Reposted by David Hartley
Co‐creating an everyday language illustration of learning health systems alongside patient, caregiver, and community partners - Vanderhout - Learning Health Systems - Wiley Online Library onlinelibrary.wiley.com/doi/pdf/10.1...
Co‐creating an everyday language illustration of learning health systems alongside patient, caregiver, and community partners
Introduction
Patients, caregivers, and community partners (PCC) can have a variety of roles in learning health systems (LHS), such as contributing their data from healthcare encounters to embedded, .....
onlinelibrary.wiley.com
September 14, 2025 at 8:49 PM
Co‐creating an everyday language illustration of learning health systems alongside patient, caregiver, and community partners - Vanderhout - Learning Health Systems - Wiley Online Library onlinelibrary.wiley.com/doi/pdf/10.1...
Links autism and Tylenol: is there any truth to it?
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Trump links autism and Tylenol: is there any truth to it?
The US president repeatedly advised people, “Don't take Tylenol,” but scientists say that strong evidence between the medication and autism is lacking.
www.nature.com
September 23, 2025 at 12:15 PM
Links autism and Tylenol: is there any truth to it?
www.nature.com/articles/d41...
www.nature.com/articles/d41...
Reposted by David Hartley
After months of aid cuts, the State Department has released a 35-page document detailing how it plans to roll out global health assistance. Here's what it says — and what the reaction is.
What's in -- and what's missing -- in the new U.S. strategy for global health
After months of aid cuts, the State Department has released a 35-page document detailing how it plans to roll out global health assistance. Here's what it says — and what the reaction is.
n.pr
September 22, 2025 at 7:39 PM
After months of aid cuts, the State Department has released a 35-page document detailing how it plans to roll out global health assistance. Here's what it says — and what the reaction is.
Measles outbreak growing in parts of Arizona and Utah, health officials say
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...
Measles outbreak growing in parts of Arizona and Utah, health officials say
Measles vaccination rates have plummeted in the neighboring communities over the last 10 years.
www.nbcnews.com
September 22, 2025 at 8:13 PM
Measles outbreak growing in parts of Arizona and Utah, health officials say
www.nbcnews.com/health/healt...
www.nbcnews.com/health/healt...