Alexandra Williams, MS Biodense @AlexandaMW
Biodefense, MS - George Mason University Opinions = my own Washington, D.C. Joined September 2011-
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This is why we fund science. The mRNA platform accelerated during COVID is now being applied to some of our most challenging cancers, including pancreatic cancer, melanoma, and brain tumors. That’s the beauty of science: you never know where a breakthrough will lead next.
White House reclassifies federal epidemiologists and other scientists from civil servants to ‘at-will’ hires | Scientific American scientificamerican.com/article/white-…
“Scientists shouldn’t get political.” Except for when politics is destroying science, killing millions, and making the world a much more dangerous place for everyone. It’s never inappropriate or unprofessional to stand up for your field, especially when that’s the right thing to do for our health, security, and freedom. ✊🏻🇺🇸🇨🇦
Stopping Ebola, 'an unforgiving enemy,' will require a massive, immediate, and meticulous response, writes former CDC Director Tom Frieden. trib.al/lp7DjOH
A virus carries no passport and can’t be deterred by weapons. Yet we spend trillions on arms while underfunding the health systems that protect us all. Health security IS security. The world needs better global leadership.
Trump, Musk and Rubio slashed aid and scoffed that it was woke nonsense. Now they're seeing that it not only saved one life every 10 seconds but also protected us from diseases like Ebola. Their actions constituted a security failure as well as a moral one. More broadly, their fecklessness contrasts with the courage and humanity of doctors and aid workers in Congo and Uganda, lacking adequate PPE but still risking the virus to care for fellow humans. Trump, Musk and Rubio might learn something from them. nytimes.com/2026/06/03/opi…
The Animal and Plant Health Inspection Service at USDA helps prevent threats like screwworm from ever reaching US livestock. In 2025, it lost 1,300 employees due to cuts and firings. That’s the thing about prevention: you don’t notice it when it works, only when it is gone.
2/5 Trained on our epidemiology and our healthcare system, our vaccine schedule should mirror the reality of our situation not be guided by the politically-motivated idea that we should give kids fewer vaccines.
Sec Rubio finally taking the reins from RFK Jr. on vaccines distributed through GAVI. While we should have never reached this point in the first place - delayed action is better than none.
Rubio tosses RFK Jr under the bus on vaccines: "The State Dept made the decision that we are going to reengage ... we have certainly allowed Sec. Kennedy to play a leading role, but right now we're at a stage where we are going to reengage."
Having worked on multiple emergency responses to infectious diseases, including supporting infection control for #Ebola in NYC, the State Department leading without USAID expertise is like trying to control a fire from the mayor’s office without a fire department or fire hose.
This is so dangerous 💔
Woah. A profound shift in American science is coming. Every federal research grant could soon require sign-off from a political appointee. Scientific progress depends on funding decisions grounded in merit and public health need, NOT ideological approval.
RFK Jr lied about supporting vaccines last week, just as he lied about it many times before. Whatever anti-vax bullshit Bobby is peddling, holding up GAVI’s budget at the demonstrable expense of thousands of kids lives’ globally is unconscionable and appalling.
"Robert F. Kennedy Jr.’s ... is holding up $600 million Congress appropriated for the vaccines to pressure the international humanitarian group, Gavi, that distributes them." politico.com/news/2026/04/2… via @politico @carmenpaun
Measles and whooping cough are surging in two of Sudan's most conflict-affected regions, while measles outbreaks in the United States and Bangladesh grow. Elsewhere, Honduras’s whooping cough outbreak has reached 112 cases and 9 deaths in 2026. thinkglobalhealth.org/article/vaccin…
We need to do a bipartisan dive, if we can, into the high cost of healthcare in this country, and the growing cost of pharmaceuticals, and what Congress can do to bend that curve, @RepDianaDeGette tells the @Biodefensecomm.
Trump is day by day doing permanent damage to American science. I spoke to a friend of mine working in physics. One of the databases he uses was completely wiped clean because it also included evidence of climate change.
NEWS: Massive budget cuts for US science proposed again by Trump administration "It's an extinction-level event for science". The US government is proposing massive cuts to almost every branch of science, from NASA to the National Institutes of Health. NSF would completely
With the @FIFAWorldCup 2026 approaching—spanning 16 host cities, including Dallas, and >5M visitors—infectious disease risk is real. Honored to give Grand Rounds on threats from VHFs and vector-borne diseases to respiratory pathogens and STIs—and how we can prepare now. Identify. Isolate. Inform
Just a month left to submit your abstracts to the Social Science & Medicine Call for Abstracts for the Special Issue on Polarization and Health Policy in Global Context, edited by Nora Kenworthy & me. Abstracts due April 30. For more information visit sciencedirect.com/special-issue/…
Elon Musk and billionaires get a tax cut. 7 million Americans with Alzheimer’s get further from a cure. As a caregiver, I am sick and tired of this. We must fund medical research. Millions of American families depend on it.
We were told NIH funding cuts were about eliminating DEI. But the data now shows grants are down across nearly every field of medicine: cancer, diabetes, mental health, brain disorders. With the greatest cuts hitting Alzheimer’s research, down more than 50%.
We were told NIH funding cuts were about eliminating DEI. But the data now shows grants are down across nearly every field of medicine: cancer, diabetes, mental health, brain disorders. With the greatest cuts hitting Alzheimer’s research, down more than 50%.
We are on track to have more than 5,000 measles cases this year
HHS secretary RFK Jr. just posted AI slop of him with an 8 pack beating up a Twinkie at a WWE event. The country is at war while our department leaders douse themselves with Beer in locker rooms and post AI videos of themselves as famous athletes. This is the most unserious
Terrorism and Targete... @T2V_UMD
8 Followers 131 Following Database on U.S. Terrorism & Targeted Violence identifying trends and drivers of violence affecting public safety & critical infrastructure. Based at @START_UMD
IBBIS @IBBIS_bio
173 Followers 158 Following Safeguarding modern bioscience and biotechnology so it can advance and flourish safely and responsibly.
Alexander Riccio (@co... @ariccio
4K Followers 5K Following If left to my own devices, I will build more. Running @co2trackers. No I don't want this damn unearned blue check, I want the features and the 2fa.
Rebecca 🇺🇦❤�... @RC_Epi
2K Followers 1K Following Emerging virus expert. Jazz, 🐈, puns. Oxford comma for.evah. Views mine alone and do not represent any organizational affiliations. RT/like != endorse.
Dr. Kirk Douglas MBA ... @KirkDouglas79
453 Followers 2K Following A simple biosecurity, zoonoses, climate change, sustainability and bioeconomy researcher. Director of The Centre for Biosecurity Studies at UWI Cave Hill Campus
Colin McIff @CLMcIff
1K Followers 2K Following Deputy Assistant Secretary, Office of Global Affairs, U.S. Department of Health and Human Services, views are my own.
Infectious Disease Tr... @HmpxvT
46K Followers 14K Following Sharing reports on disease outbreaks, from bird flu to Ebola. Follow this account if you want to be the first to know when a dangerous outbreak is brewing.
Meredith Nurge @MeredithN_TX
486 Followers 1K Following Bridging the gap between Public Health and Emergency Management with lots of coffee along the way. ☕ Located in the Dallas-Fort Worth area
Oksana Vickers @oksanavickers
376 Followers 2K Following University of Chicago | Associate at UChicago XLab | Research on Tactical Nuclear Weapons, Emerging Tech Risk, and Ukraine/Russia | Ukrainian-American
Dan Regan, Ph.D. @dp_regan
193 Followers 270 Following Biodefense Analyst & Biomed Engineer. Current: @CSRisks. Former: @USNRL @NASEM_NRC_RAP @GSBSE_UMaine. Views are my own.
Daniela Ramirez Casti... @danielaramicas
125 Followers 352 Following Combating terrorism and WMD at @OEA_CICTE | Mexicana | Opinions are my own
E. Radziszewski @eradziszewski
510 Followers 510 Following Expert in international conflicts, insurgencies & private military contractors. Ph.D. Figure Skating, Piano & National Parks Aficionado. Fan of the 80s rock.
Marcelo Martinez @machemmc
204 Followers 462 Following Chief of Section Disarmament and Non Proliferation of WMD / Regional Coordinator UNSCR 1540
@davidswafford.bsky.s... @d_a_swafford
507 Followers 618 Following 𝘪𝘯 𝘮𝘦𝘥𝘪𝘢𝘴 𝘳𝘦𝘴. Pharmaceutical Chemist. Here to talk about drugs/science/music/medicine with a side of geopolitics and open source intelligence.
The Critical Mass LLC @TCM_LLC
634 Followers 4K Following #TCMSustainableSecurity by matching the right partners, the right time and the right expectations | #Sciencediplomacy | #WomenPeaceSecurity | #Ukraine
Jean Claude Makangara @jcmakson
3K Followers 3K Following MD, PhD student, Virology&Bioinfo @unibern, Microbiology Assistant at Kinshasa University Hospital; Researcher INRB @Labgenpath Member @ASTMH
Dr. Syra Madad, DHSc @drsyramadad
63K Followers 1K Following Chief Biopreparedness Officer ▪️Public Health Editor-at-Large @NYASciences ▪️Biosecurity Advisor ▪️Faculty @BUCEID Fellow @Belfercenter▪️MSc, DHSc 🎓
Jose C Vanegas, M.D. @VanegasCJose
74 Followers 2K Following Keywords: IMG. Internal Medicine. Infectious Diseases. Colombian. POC.
Dr Talkmore Maruta @dr_maruta
553 Followers 834 Following
Devin Hayes Ellis @DevinHayesEllis
132 Followers 260 Following UMD, NatSec, academics think I'm a spy and spies think I'm an academic. Montgomery Parks Foundation: https://t.co/0vtjllXs55
Matt Watson @BioAndBaseball
3K Followers 3K Following Husband, Father. Working on #bioeconomy & #biosecurity policy.
Jill @jillmquigley
39 Followers 309 Following Nothing to see here, just 3 garden gnomes in a trench coat pretending to be a lawyer.
CBRN Risk Analysis an... @CBRNRiskProlif
852 Followers 1K Following CBRN, Non-Proliferation, Risk Assessment
START Consortium @START_UMD
9K Followers 640 Following @DHSgov Emeritus Center of Excellence @UofMaryland studying causes & consequences of terrorism around the world. Home to @GTD_UMD @T2V_UMD @IWCAG_UMD @UWT_UMD.
Anastasia Lambrou @anasophlambrou
1K Followers 2K Following chem-bio @ CAISI | AIxNatSec 🦠🧬 surveillance | biothreat/pandemic prev, prep & response | personal acct
Dana Lewis @Danaslewis
16K Followers 3K Following Award winning TV Correspondent and host. Creator of the hugely influential Back Story with Dana Lewis Podcast. https://t.co/xU8ab7EcJF
Alexander Linder, MA,... @aglinder08
148 Followers 548 Following Biodefense and Health; Recovering Bioinformatician; @GeorgetownCSS. @LoyolaChicago, & @gubiohaz alum. Sr. Analyst @JHSPH_CHS. All views are my own.
uclagrad.bsky.social ... @UCLA_Grad
1K Followers 5K Following 🏘 #HousingIsHealthCare 🏡 #HomesGuarantee 🏠 #HomesForAll 🛏 #EvictionsKill 🛁 #PHIMBY🚿 Past Lives: Public Policy at @CST_News; @UCLA He/Him/His
Lola El Monte @SummerGary3
1K Followers 2K Following Facing today’s problems with yesterday’s makeup still on 🫡
Amy Diehl, Ph.D. @amydiehl
24K Followers 9K Following 📖 GLASS WALLS, CIO, Gender Bias Expert, Researcher, Consultant, Speaker, Traveler, Cyclist, Feminist, Equalist. @amydiehl.bsky.social
Danyale Kellogg @danyale_kellogg
122 Followers 541 Following @SouthwesternU '19|@BushSchool '21|@ScharSchool Biodefense PhD student|@PandoraReport Managing Editor|Boren Fellow 🇹🇼|Fightin' Texas Aggie
Massimo Amorosi @Massimo2909
446 Followers 1K Following Expert of strategic studies and CBRN proliferation - emerging biothreats and cognitive warfare. Based in Rome
Dr. Brett Edwards @bwiedwards
3K Followers 4K Following still do some stuff here . new accounts starting over at https://t.co/Jq0N7ExOeJ https://t.co/Zu0H3XmdN3
Dan Masar @DanMasar
178 Followers 1K Following RN, FNP-C in Montana. Interested in improving health and healthcare. Always learning.
Krutika Kuppalli, MD ... @KrutikaKuppalli
38K Followers 750 Following ID physician. COVID-19, mpox,emerging infections, global health & pandemic preparedness and response. Tweets are own views.
Keira Wickliffe Berge... @keira_wickberg
754 Followers 2K Following infectious disease epi, disaster prep, zoonotics, ER RN, cultural anthro, naturalist, photographer. Views=my own. (she/her/hers) https://t.co/kaH5HGbdMr
Tyler @tylerclarkreal
2 Followers 85 Following Leveraging data analysis, statistical inference, and ML into outcome-oriented business/policy solutions. RT's and follows are not endorsements.
Michael Hunzeker @MichaelHunzeker
2K Followers 944 Following Associate Professor at George Mason University & @TaiwanMonitor Director. Standard disclaimers
lucyopencell @lucyopencell
3K Followers 4K Following Stories about 🔬 biotech 🧬 @opencelllondon! Check out the youtube channel 👉 https://t.co/bs51EOuPXq
Proud Nurses 💉 @nursernproud
186 Followers 691 Following ❤️ Welcome to Nurse page ❤️ Nursing | RN | ER Nurse🇺🇸🇦🇺🇨🇦🇬🇧 🎁Check there are some Gifts🎁 for you and your Family or Friends 🌐Visit our WEB-STORE ⬇⬇⬇
Mary Lancaster @MaryJLancaster
640 Followers 3K Following Epidemiologist. Questioner of everything. Knitter, baker, skill collector. #epitwitter. 2016 #ELBI fellow. Tweets in personal capacity. RT != endorsement.
Jason Kindrachuk, PhD @KindrachukJason
20K Followers 7K Following Associate Professor|Canada Research Chair|@umanitoba @UM_RadyFHS|contributor @Forbes|#emergingviruses #COVID19 #Ebola #mpox| Same handle for other platforms
Nick Cropper, CPH ☣... @Croppernicus
226 Followers 2K Following Biosecurity & chem/bio weapons nonproliferation. Sometimes pumpkin carvings & labs (both dog & science). Taking a break from Twitter, find me on LinkedIn!
Loren Matheson @loren_matheson
166 Followers 218 Following 🇨🇦 | Government of Canada Scientist | Bio S&T supporting Safety and Security | Science Communications | PhD UofO | Views are my own
Olga Peña PhD.🔬�... @OlgaPena
4K Followers 3K Following Imperfect Human |Mom | She/Her |Scientist🦠& GoC #PublicHealth #EmergencyResponse & #Policy |Former #Vanier & #SciPol Fellow |#EDI✊ #Latina| MyViews
Kimberly Ma (she/her) @kimmyma_dc
47 Followers 38 Following Senior Analyst, Preparedness, ASTHO || Biohazards, emerging infectious diseases, global health security. Alumna @dartmouth and @biomedgrad. Views are my own.
Mohammed Jibriel @modhisheen
566 Followers 408 Following
Dr. Catharine Young @DrCatharineY
39K Followers 20K Following Scientist || Immigrant || Senior Fellow @HarvardChanSPH || Fmr: White House #CancerMoonshot, @CornellBME, @TEDFellow || 🇿🇦 + 🇺🇸
Dr. Lucky Tran @luckytran
72K Followers 4K Following Science comms, public health, climate justice. @WHO Fides member, @grist Fixer, Creative Change alum. Opinions my own & don’t reflect my employer.
Dr Alexander Ghionis @alexghionis
1K Followers 2K Following Research Fellow in Chemical and Biological Security | Harvard Sussex Program, Science Policy Research Unit
TaylorMerchWhispererB... @swiftpitch_py
90K Followers 278 Following @PopVinylSigned • Live updates 🛍️ 🇺🇸 Taylor Swift Store. @goosekingone @ithinkforme1989. Tech besties with @swiftalert_13 📱
IBBIS @IBBIS_bio
173 Followers 158 Following Safeguarding modern bioscience and biotechnology so it can advance and flourish safely and responsibly.
Katherine J. Wu, Ph.D... @KatherineJWu
37K Followers 2K Following staff writer @TheAtlantic, covering science. also senior producer @storycollider, senior editor @Open_Notebook. (she/her)
VHHA @VirginiaHHA
2K Followers 528 Following VHHA represents 117 hospitals and 26 health systems across Virginia. Our goal is to make Virginia the healthiest U.S. state. RT ≠ endorsements. #HospitalsMatter
Lab of Kizzmekia Corb... @KizzyPhD_Lab
2K Followers 17 Following We are viral immunologists, molecular virologists, & protein engineers informing vaccine and antibody development for coronaviruses & other emerging viruses.
Kay Russo @KRussoDVM
371 Followers 34 Following
BEACON @beacon_bio
470 Followers 55 Following Biothreats Emergence, Analytics & Communications Network (BEACON) is an open source surveillance program @BUCEID in partnership with @BU_Computing @HealthMap
Jennifer Gunter @DrJenGunter
334K Followers 15K Following OB/GYN, appropriately confident, lasso of truth, Canadian Spice, I speak for no one but me. The Vagina Bible. Menopause Manifesto. New book: Blood 🩸
Carlos del Rio @CarlosdelRio7
55K Followers 2K Following Chair Department of Medicine at Emory Univ SOM; co-Director Emory CFAR; International Secretary of NAM. Posted opinions are own. RT not endorsements.
Global Partnership | ... @GPWMDofficial
1K Followers 377 Following Official account of the G7-led, 31 member Global Partnership Against the Spread of Weapons & Materials of Mass Destruction (CBRN Threat Reduction)
NETEC @TheNETEC
2K Followers 1K Following Improving special pathogen preparedness in the U.S. @EmoryUniversity / @unmc / @BellevueHosp. Retweets ≠ endorsement. Find us on Bluesky: https://t.co/fIE2kLFZWT
GBH Forum Network @GBHForumNetwork
2K Followers 2K Following GBH's video hub for lifelong learners. Public media purveyor of the enlightening. Supported by the Lowell Institute.
Kirsten Gillibrand @SenGillibrand
1.3M Followers 1K Following Mom to Theo, Henry and dog Maple. Wife to Jonathan. U.S. Senator for New York.
VDOT Salem @VaDOTSalem
4K Followers 1K Following VDOT's Salem District serves citizens in the Roanoke & New River valleys, Martinsville & Hillsville areas. Real-time traffic: @511SouthwestVA Statewide: @VaDOT
UMD Right Now @UMDRightNow
23K Followers 805 Following Keep up with UMD experts in the news, cutting-edge research and breaking campus news with UMD Right Now, a resource for media from @UofMaryland
Jean Pascal Zanders @JPZanders
2K Followers 701 Following #ChemicalWeapons #BiologicalWeapons #Disarmament Postings + retweets are NOT endorsements Member of Volt Europa @VoltEuropa and Volt France @volt_france
Dr. Kirk Douglas MBA ... @KirkDouglas79
453 Followers 2K Following A simple biosecurity, zoonoses, climate change, sustainability and bioeconomy researcher. Director of The Centre for Biosecurity Studies at UWI Cave Hill Campus
Asha M. George, DrPH @DrAshaMGeorge
217 Followers 162 Following Asha M. George, DrPH, is the Executive Director of the Bipartisan Commission on Biodefense. Previously, she served in the US House of Representatives as staff.
Taylor Nation @taylornation13
3.3M Followers 839 Following "I Knew It, I Knew You," Taylor's original song for Toy Story 5, out now! ☁️ https://t.co/mj9YP3x02H Official TS Social Team
BNO News @BNOFeed
312K Followers 11K Following Health-related updates. For other news, follow @BNONews and @BNODesk.
Jonathan Reiner @JReinerMD
84K Followers 2K Following Professor of Medicine and Surgery Interventional Cardiologist, CNN Medical Analyst, @ScribnerBooks author
Meredith Nurge @MeredithN_TX
486 Followers 1K Following Bridging the gap between Public Health and Emergency Management with lots of coffee along the way. ☕ Located in the Dallas-Fort Worth area
Ben Wakefield @BCWakefield
678 Followers 980 Following • Specialist Senior Advisor UK Gov • Fellow @RGS_IBG • Former @BSPH_CHS, @ChathamHouse, ELBI 2020, UCL, Lboro & UTS • Views = me • Personal acccount
OEA - Departamento Co... @OEA_DDOT
6K Followers 146 Following Cuenta oficial del Departamento contra la Delincuencia Organizada Transnacional | Official account of the Department against Transnational Organized Crime
Simone Biles @Simone_Biles
2.0M Followers 299 Following Wife. Olympic Champion. IG & snapchat: simonebiles
WastewaterSCAN @WastewaterSCAN
4K Followers 93 Following WastewaterSCAN monitors infectious diseases through municipal #wastewater systems across the U.S. to inform public health responses locally and nationally.
Colin McIff @CLMcIff
1K Followers 2K Following Deputy Assistant Secretary, Office of Global Affairs, U.S. Department of Health and Human Services, views are my own.
Infectious Disease Tr... @HmpxvT
46K Followers 14K Following Sharing reports on disease outbreaks, from bird flu to Ebola. Follow this account if you want to be the first to know when a dangerous outbreak is brewing.
National Public Healt... @NPHW
26K Followers 5K Following The American Public Health Association (@publichealth) will celebrate the 30th National Public Health Week April 7-13, 2025. See you for #NPHW!
Pandemic Center at Br... @pandemiccenter
2K Followers 336 Following Working to reduce vulnerabilities and increase resilience to pandemics and the harms they pose to health, peace, security, and prosperity.
Rebecca 🇺🇦❤�... @RC_Epi
2K Followers 1K Following Emerging virus expert. Jazz, 🐈, puns. Oxford comma for.evah. Views mine alone and do not represent any organizational affiliations. RT/like != endorse.
Luciana Vazquez @LucianaVazquezS
39 Followers 71 Following Field Certifier enhanced accreditation BSC-NSF/ Professional Certification in Biorisk Management -IFBA/ Shipper of Transport of Infectious Substances -IATA/WHO
Fernanda Sarmiento @fersarmiento8
87 Followers 111 Following Legislative Assistance and Counter Terrorism Financing Program OAS/CICTE. Inter-American Committee against Terrorism
OEA - Secretaría de ... @OEA_Seguridad
4K Followers 282 Following Cuenta oficial de la Secretaría de Seguridad Multidimensional de @OEA_oficial | Official account of @OAS_official Secretariat for Multidimensional Security /
OEA @OEA_oficial
1.3M Followers 1K Following Cuenta oficial de la Organización de los Estados Americanos (OEA) en español. For English follow @OAS_official, para português siga @OEA_BR
NWS Baltimore-Washing... @NWS_BaltWash
80K Followers 285 Following Official X Account for National Weather Service Baltimore/Washington. For NWS Posting Policy, click here: https://t.co/TsuJRpL5Er
The Critical Mass LLC @TCM_LLC
634 Followers 4K Following #TCMSustainableSecurity by matching the right partners, the right time and the right expectations | #Sciencediplomacy | #WomenPeaceSecurity | #Ukraine
Alexander Linder, MA,... @aglinder08
148 Followers 548 Following Biodefense and Health; Recovering Bioinformatician; @GeorgetownCSS. @LoyolaChicago, & @gubiohaz alum. Sr. Analyst @JHSPH_CHS. All views are my own.
Bob Wachter @Bob_Wachter
240K Followers 287 Following Chair, UCSF Dept of Medicine. Career: What happens when a poli sci major becomes an academic MD. Author, "A Giant Leap" on Health AI. Hubby/Dad/Grandpa/Golfer.
Céline Gounder, MD... @celinegounder
105K Followers 1K Following Medicine / Infectious Disease / Epidemiology / @KFF @CBSNews @NYUGrossman @BellevueHosp doc / Threads @drcelinegounder / Bluesky @celinegounder.com
Dan Regan, Ph.D. @dp_regan
193 Followers 270 Following Biodefense Analyst & Biomed Engineer. Current: @CSRisks. Former: @USNRL @NASEM_NRC_RAP @GSBSE_UMaine. Views are my own.
CICTE @OEA_CICTE
8K Followers 616 Following Comité Interamericano Contra el Terrorismo - @OEA_oficial / Inter-American Committee against Terrorism - @OAS_official [email protected]
E. Radziszewski @eradziszewski
510 Followers 510 Following Expert in international conflicts, insurgencies & private military contractors. Ph.D. Figure Skating, Piano & National Parks Aficionado. Fan of the 80s rock.

















