David Hartley
@hartleydm.bsky.social
š¤ 598
š„ 118
š 179
Mathematical epidemiologist working on complex systems, infectious disease, and public health.
Lethal plague outbreaks in Lake Baikal hunter-gatherers 5,500 years ago
www.nature.com/articles/s41...
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Lethal plague outbreaks in Lake Baikal hunter-gatherers 5,500 years ago - Nature
Analyses of ancient DNA from hunter-gatherers near Lake Baikal in southeast Siberia around 5,500 years ago indicate that highly virulent Yersinia pestis emerged earlier than previously estimated, far&...
https://www.nature.com/articles/s41586-026-10540-5
16 days ago
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The conversation a 98-year-old retired physician never expected to have
www.washingtonpost.com/opinions/202...
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Opinion | The conversation a 98-year-old retired physician never expected to have
Vaccine misinformation isnāt new. These tried-and-true methods work to combat it.
https://www.washingtonpost.com/opinions/2026/06/11/vaccine-hesitancy-can-be-overcome-this-98-year-old-doctor-argues/
21 days ago
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reposted by
David Hartley
Eric Topol
about 1 month ago
The incidence and prevalence of
#LongCovid
worse than anticipated in the US, with 1 of 6 persons affected, and of these 89% had at least 1 chronic condition requiring management. From 58 hospitals, 4 regions, 457,950 patients. Prevalence increased thru mid 2024.
jamanetwork.com/journals/jam...
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Long COVID Persistence and Surveillance Gaps Across 58 US Hospitals
This cohort study quantifies the gap between true postacute sequelae of SARS-CoV-2 burden and diagnostic codeābased estimates, determines the proportion representing chronic disease, and characterizes...
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2849452
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"So we need more testing, we need more diagnosis to make sure that we get a full picture of what is going on . . .
www.bbc.com/news/article...
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Ebola-hit DR Congo faces 'catastrophic collision' of disease and conflict, WHO warns
Tedros Adhanom Ghebreyesus said fighting in DR Congo was hampering efforts to stop spread
https://www.bbc.com/news/articles/cdxpdex062yo
about 1 month ago
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reposted by
David Hartley
Open Forum Infectious Diseases
about 2 months ago
Invasive Fusariosis: A Retrospective Case Series Evaluating In Vitro Minimum Inhibitory Concentrations and Clinical Response ā Just Accepted š
https://bit.ly/4eQPTL9
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David Hartley
CMMID
about 2 months ago
šļø New
@plos.org
publication from Centre members including
@adamjkucharski.bsky.social
@sdwfrost.bsky.social
Paper explores new ways to use using nonlinear programming & mathematical models for
#PublicHealth
measures against epidemics Read the full paper š½
journals.plos.org/ploscompbiol...
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Relative contributions of public and domestic transmission domains in cholera outbreaks in displacement camps: an exploratory agent-based modelling study
www.cambridge.org/core/journal...
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Relative contributions of public and domestic transmission domains in cholera outbreaks in displacement camps: an exploratory agent-based modelling study | Epidemiology & Infection | Cambridge Cor...
Relative contributions of public and domestic transmission domains in cholera outbreaks in displacement camps: an exploratory agent-based modelling study
https://www.cambridge.org/core/journals/epidemiology-and-infection/article/relative-contributions-of-public-and-domestic-transmission-domains-in-cholera-outbreaks-in-displacement-camps-an-exploratory-agentbased-modelling-study/B0FD6E4AE6AD6C2F76C700F196AFAACB
about 2 months ago
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Performance of a large language model on the reasoning tasks of a physician
www.science.org/doi/10.1126/...
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Performance of a large language model on the reasoning tasks of a physician
More than 65 years ago, complex clinical diagnostic reasoning cases were introduced as the gold standard for the evaluation of expert medical computing systems, a standard that has held ever since. In...
https://www.science.org/doi/10.1126/science.adz4433
about 2 months ago
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Most U.S. doctors are quietly using this AI tool. Few patients know about it.
www.nbcnews.com/tech/tech-ne...
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Most U.S. doctors are quietly using this AI tool. Few patients know about it.
OpenEvidence, an AI-powered medical search tool, has become a fast friend to Americaās doctors and is now used by nearly two-thirds of physicians.
https://www.nbcnews.com/tech/tech-news/openevidence-ai-doctor-medical-physician-login-app-what-npi-uptodate-rcna341064
about 2 months ago
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Early Detection Intervals for Evaluating Event-Based Surveillance System: Reference Dataset Development Study
publichealth.jmir.org/2026/1/e87030
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Early Detection Intervals for Evaluating Event-Based Surveillance System: Reference Dataset Development Study
Background: Early detection of health threats is an objective of public health surveillance, and event-based surveillance (EBS) using unstructured information from diverse sources has played an increa...
https://publichealth.jmir.org/2026/1/e87030
about 2 months ago
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David Hartley
BK. Titanji
2 months ago
š§µ UPDATE: WHO has released a full situation report on the Hondius hantavirus outbreak. New details change the picture. Here's what's new:
www.who.int/emergencies/...
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Hantavirus cluster linked to cruise ship travel, Multi-country
On 2 May 2026, a cluster of passengers with severe respiratory illness aboard a cruise ship was reported to the World Health Organization. The ship is carrying 147 passengers and crew. As of 4 May 202...
https://www.who.int/emergencies/disease-outbreak-news/item/2026-DON599
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reposted by
David Hartley
Kai Kupferschmidt
2 months ago
I've spent yesterday and today talking to researchers across the globe trying to understand the hantavirus outbreak aboard the cruise ship MV Hondius. My story in
@science.org
is here (and some threaded thoughts coming):
www.science.org/content/arti...
š§Ŗ
#IDsky
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Cruise shipās hantavirus outbreak puts researchers in uncharted territory
Questions about the culprit virus and its route of spread remain as health officials make plans for stranded passengers
https://www.science.org/content/article/cruise-ship-s-hantavirus-outbreak-puts-researchers-uncharted-territory
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Three dead in suspected virus outbreak on Atlantic cruise ship
www.bbc.com/news/article...
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Three dead in suspected hantavirus outbreak on Atlantic cruise ship
The World Health Organization said one case of hantavirus infection has been confirmed, with five more suspected cases under investigation.
https://www.bbc.com/news/articles/cy0294829ndo
2 months ago
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David Hartley
Michael Lairmore DVM, PhD
2 months ago
āTicks are surviving winters in larger numbers and staying active for more of the year. Species are expanding into new areas and potentially picking up new pathogens.ā
@naohun.bsky.social
@onehealthinstitute.bsky.social
@psumbiome.bsky.social
#OneHealth
www.nytimes.com/2026/05/02/w...
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Itās Already a Bad Tick Season. Hereās How to Protect Yourself.
https://www.nytimes.com/2026/05/02/well/live/tick-bites-diseases-symptoms.html?smid=nytcore-ios-share
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Where emergency visits for tick bites are highest in the United States
www.washingtonpost.com/health/2026/...
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Where emergency visits for tick bites are highest in the United States
Experts point to several reasons for the larger-than-usual spike, but there are easy ways to protect yourself.
https://www.washingtonpost.com/health/2026/05/01/tick-bites-emergency-room-visits/
2 months ago
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Building Enhanced Public Health Data Systems With a Situational Awareness and Learning Tool: Focus Group Study
ojphi.jmir.org/2026/1/e77379
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Building Enhanced Public Health Data Systems With a Situational Awareness and Learning Tool: Focus Group Study
Background: Situational awareness is the accurate and timely perception of factors in the environment, comprehension of their meanings, and projection of their future states. Objective: We aimed to d...
https://ojphi.jmir.org/2026/1/e77379
2 months ago
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South Carolinaās measles outbreak: Public health workers, doctorsā offices and pharmacies administered nearly 82,000 doses from October to March
www.nbcnews.com/health/healt...
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South Carolinaās measles outbreak is over after sickening nearly 1,000 people
Although measles vaccine uptake was slow at first, public health workers, doctorsā offices and pharmacies administered nearly 82,000 doses from October to March.
https://www.nbcnews.com/health/health-news/south-carolina-measles-outbreak-over-nearly-1000-cases-rcna342358
2 months ago
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Economic Impact of Delaying the Infant Hepatitis B Vaccination Schedule
@noelenelson.bsky.social
jamanetwork.com/journals/jam...
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Economic Impact of Delaying the Infant Hepatitis B Vaccination Schedule
This economic evaluation investigates the impact of delaying vaccination against hepatitis B virus among US infants.
https://jamanetwork.com/journals/jamapediatrics/fullarticle/2848162?guestAccessKey=63742f31-5880-4b60-9246-216080600f3b
2 months ago
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Spatial pattern regulation in pine wilt disease models with feedback mechanisms
www.sciencedirect.com/science/arti...
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Spatial pattern regulation in pine wilt disease models with feedback mechanisms
Pine wilt disease is one of the most hazardous and devastating forest biological disasters in China. By causing large-scale mortality of pine trees, iā¦
https://www.sciencedirect.com/science/article/abs/pii/S0025556426000970
2 months ago
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Generative AI-driven chatbots and medical misinformation: an accuracy, referencing and readability audit
bmjopen.bmj.com/content/16/4...
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https://bmjopen.bmj.com/content/16/4/e112695
3 months ago
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The evaluation of surveillance systems in veterinary public health: A scoping review on the attributes and assessment frameworks most commonly used
www.sciencedirect.com/science/arti...
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The evaluation of surveillance systems in veterinary public health: A scoping review on the attributes and assessment frameworks most commonly used
Regular evaluation of disease surveillance programs is essential to ensure they provide reliable and useful information in an efficient manner. Surveiā¦
https://www.sciencedirect.com/science/article/pii/S016758772600098X?via%3Dihub
3 months ago
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How a new wave of immunotherapy is eliminating cancers
www.bbc.com/future/artic...
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'It's incredible, like science fiction': How a new wave of immunotherapy is eliminating cancers
After nearly 100 years of development, treatments that bolster the body's immune system to fight cancer are coming of age ā and saving patients' lives.
https://www.bbc.com/future/article/20260410-how-a-new-wave-of-immunotherapy-is-eliminating-cancers
3 months ago
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Bifurcation, sensitivity, and noise: Stochastic dynamics of cholera with vaccination and sanitation controls
journals.plos.org/complexsyste...
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Bifurcation, sensitivity, and noise: Stochastic dynamics of cholera with vaccination and sanitation controls
Author summary Cholera continues to cause significant illness and death in regions with limited access to clean water and healthcare. While mathematical models help us understand how cholera spreads, ...
https://journals.plos.org/complexsystems/article?id=10.1371/journal.pcsy.0000099
3 months ago
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A deadly bacterial disease is returning, doctors warn, as vaccination rates fall
www.nbcnews.com/health/healt...
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A deadly bacterial disease is returning, doctors warn, as vaccination rates fall
Hib once killed 1,000 children a year, permanently disabling many more. Doctors who've never seen the disease say the comeback is changing the way they practice medicine.
https://www.nbcnews.com/health/health-news/bacterial-disease-hib-doctors-warn-rising-vaccination-rates-drop-rcna265851
3 months ago
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reposted by
David Hartley
Adam Kucharski
4 months ago
"When intending to upload code, some researchers have also accidentally published partial or entire Biobank datasets to GitHub, a popular online code-sharing platform."
www.theguardian.com/science/2026...
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Confidential health records from UK BioBank project exposed online
Exclusive: Guardian investigation finds data from flagship medical research leaked dozens of times
https://www.theguardian.com/science/2026/mar/14/confidential-health-records-exposed-online-uk-biobank
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David Hartley
Mark Histed
4 months ago
The most impt change at
#NIH
and to US science this year is bigger than grant cancellationsā itās how the agency is governed. For 75 years NIH has been largely independent of presidential control. Thatās changed this year. New piece from me and
@nataliebaviles.bsky.social
in
@nature.com
š§Ŗ
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How Congress can restore the independence of US science
Members must go beyond reinstating US government research spending and re-establish decentralized governance at the National Institutes of Health and other agencies.
https://www.nature.com/articles/d41586-026-00703-9
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David Hartley
The Lancet Microbe
5 months ago
New research article Spatiotemporal patterns of
#RiftValleyFever
virus in Africa: a retrospective genomic epidemiology and phylodynamic modelling study
www.thelancet.com/journals/lan...
#IDSky
#ClinMicro
#ViroSky
#RVFV
#OpenAccess
#OA
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Rift Valley fever vaccines for animals and people: Envisioning One Health vaccination strategies
www.cabidigitallibrary.org/doi/10.1079/...
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Rift Valley fever vaccines for animals and people: Envisioning One Health vaccination strategies | CABI One Health
Abstract Background: Rift Valley fever (RVF) is a zoonotic viral disease transmitted by mosquitoes, that causes significant impacts on animal health, public health, and socio-economic wellbeing in aff...
https://www.cabidigitallibrary.org/doi/10.1079/cabionehealth.2026.0005#core-R000028-1
5 months ago
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South Carolina measles outbreak reaches 789 cases, surpassing Texas
www.nbcnews.com/health/healt...
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South Carolina measles outbreak reaches 789 cases, surpassing Texas
The ongoing outbreak is the largest since measles was eliminated in the country 26 years ago.
https://www.nbcnews.com/health/health-news/south-carolina-measles-outbreak-surpasses-texas-vaccines-rcna256030
5 months ago
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reposted by
David Hartley
BEACON
6 months ago
First detection of blaDHA-1 carrying XDR Shigella in the U.S. in two patients, with unclear transmission route
https://beaconbio.org/en/report/?reportid=622652f3-858a-474b-bec1-9fab6f62acd3&eventid=6f0d5b09-2acb-40a8-b7e7-1a54bd1caa1b&utm_source=bluesky&utm_medium=social&utm_campaign=socialpost
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'Staring over the edge': South Carolina measles outbreak doubles in a week
www.nbcnews.com/health/healt...
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'Staring over the edge': South Carolina measles outbreak doubles in a week
More than 500 people are in a 21-day quarantine and about 200 are "actively infected." The largest outbreak currently in the U.S. has spread to at least three other states.
https://www.nbcnews.com/health/health-news/south-carolina-measles-outbreak-cases-double-vaccines-quarantine-rcna253989
6 months ago
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reposted by
David Hartley
Adam Kucharski
6 months ago
Want to get the data out of a PDF figure? As in, the actual data ā not a rough trace-along-the-lines version? I made an app you might like:
adamkucharski.github.io/pdf2plot/
It all started a few years ago... š§µ
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South Carolina measles outbreak surges past 300 cases The state has confirmed 99 new cases since Tuesday. Arizona, North Carolina, Ohio and Utah are also reporting cases.
www.nbcnews.com/health/healt...
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South Carolina measles outbreak surges past 300 cases
The state has confirmed 99 new cases since Tuesday. Arizona, North Carolina, Ohio and Utah are also reporting cases.
https://www.nbcnews.com/health/health-news/south-carolina-measles-outbreak-surges-300-cases-rcna252847
6 months ago
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Face masks āinadequateā and should be swapped for respirators, WHO is advised
www.theguardian.com/global-devel...
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Face masks āinadequateā and should be swapped for respirators, WHO is advised
Experts are urging guideline changes on what health professionals should wear to protect against flu-like illnesses including Covid
https://www.theguardian.com/global-development/2026/jan/09/health-professionals-respirator-grade-masks-who-advise
6 months ago
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David Hartley
Kathleen Bachynski
6 months ago
This is an understatement: āItās not clear to public health experts why the U.S., with a population 57 times larger and a vastly different health care system, would model its vaccine policies on Denmark. The nation has one of the most limited lists of recommended shots among peer countries.ā
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Trump administrationās plan to shrink vaccine schedule sends health sector scrambling
The health sector is working to navigate what could be the most significant changes to the U.S. vaccine program in decades.
https://www.statnews.com/2025/12/23/trump-rfk-vaccine-schedule-healthcare-sector-considers-response/
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As tetanus vaccination rates decline, doctors worry about rising case numbers
www.nbcnews.com/health/kids-...
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As tetanus vaccination rates decline, doctors worry about rising case numbers
The harrowing, deadly infection could make a comeback, especially in states vulnerable to climate-linked natural disasters, like Florida and Texas, an NBC News investigation finds.
https://www.nbcnews.com/health/kids-health/tetanus-cases-rise-vaccine-rates-down-dtap-children-shots-rcna244685
6 months ago
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reposted by
David Hartley
Lawrence (Larry) MrĆ³z
6 months ago
Patient perspectives of patient engagement in medicine development: a qualitative study
www.tandfonline.com/doi/pdf/10.1...
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https://www.tandfonline.com/doi/pdf/10.1080/03007995.2025.2605694
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David Hartley
BMT InfoNet
7 months ago
Our GVHD Alliance partner nbmtLINK is hosting a one-hour Power Panel on GVHD symptoms on January 5, 2026. An educational resource for those whoāve undergone a stem cell transplant, caregivers, and loved ones. š Learn more and register:
www.nbmtlink.org/symptom-sign...
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Symptoms & Signs of Chronic Graft Versus Host Disease: January 5, 2026 One hour Zoom webinar, sponsored by the National Bone Marrow Transplant Link, will host Dr. Andy Harris, Dr. Doris Ponce and Dr. Alina Markova of Memorial Sloan Kettering Cancer Center.
www.nbmtlink.org/webinars/
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Webinars About Bone Marrow Transplant
The Bone Marrow Transplant information in these webinars should not be construed as medical advice.
https://www.nbmtlink.org/webinars/
6 months ago
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David Hartley
Helen Branswell šØš¦
7 months ago
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-...
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Update: Genetic Sequencing Results for Wisconsin Dairy Herd Detection of Highly Pathogenic Avian Influenza | Animal and Plant Health Inspection Service
Contact:
[email protected]
https://www.aphis.usda.gov/news/agency-announcements/update-genetic-sequencing-results-wisconsin-dairy-herd-detection-highly
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CDC officials urge US flu vaccination after record child deaths last year
www.theguardian.com/us-news/2025...
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CDC officials urge US flu vaccination after record child deaths last year
Americans told ātime to get vaccinated is nowā as concerning mutation of influenza virus circulates in US
https://www.theguardian.com/us-news/2025/dec/18/cdc-flu-vaccination?CMP=Share_iOSApp_Other
7 months ago
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Measles outbreaks worsen in South Carolina, Arizona and Utah
www.cbsnews.com/news/measles...
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Measles outbreaks worsen in South Carolina, Arizona and Utah
Nationally, the measles case count is nearing 2,000 for a disease that has been considered eliminated in the U.S. since 2000, a result of routine childhood vaccinations.
https://www.cbsnews.com/news/measles-outbreaks-worsen-south-carolina-arizona-utah/
7 months ago
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David Hartley
The Atlantic
7 months ago
Many physicists have come to believe that a mystery is unfolding in every microbe, animal, and humanāone that could redefine the field for the next generation, Adam Frank writes.
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A Physics Renaissance Is Coming
The field can no longer ignore the fundamental mystery posed by living things.
https://bit.ly/3Ky1J01
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David Hartley
NBC News
7 months ago
The measles outbreak in South Carolina is āacceleratingā with no end in sight following Thanksgiving and other large gatherings, state health officials say.
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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.
https://nbcnews.to/4a9cOir
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Blaming some child deaths on covid shots, FDA vows stricter vaccine rules
www.washingtonpost.com/health/2025/...
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Blaming some child deaths on covid shots, FDA vows stricter vaccine rules
Vinay Prasad, the nationās top vaccine regulator, said his team concluded that coronavirus shots were linked to childrenās deaths, necessitating a new approach.
https://www.washingtonpost.com/health/2025/11/29/fda-vaccine-approval-child-covid-deaths/
7 months ago
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Surging measles cases are 'fire alarm' warning that other diseases could be next
www.nbcnews.com/health/healt...
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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.
https://www.nbcnews.com/health/health-news/surging-measles-cases-are-fire-alarm-warning-diseases-rcna246035
7 months ago
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reposted by
David Hartley
Alessandro Vespignani
7 months ago
Weāve 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. š Contact-level data + contact matrices Built for epidemic modeling & forecasting Fully open data & code š
www.epistorm.org/data/epistor...
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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.
https://www.epistorm.org/data/epistorm-mix
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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...
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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...
https://www.medrxiv.org/content/10.1101/2025.11.24.25340907v1
7 months ago
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reposted by
David Hartley
Eli Perencevich
8 months ago
CDC published the latest epidemiology on alpha gal syndrome early this year in
@jamanetworkopen.com
(open access)
jamanetwork.com/journals/jam...
add a skeleton here at some point
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