Tomas Leon @tomasmleon
infectious disease modeling for state of California tomasleon.com Richmond, CA Joined November 2016-
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The California Department of Public Health is pleased to invite abstract submissions for the 4th Annual Western States Modeling Symposium, to be held virtually on Wednesday, October 8, 2025, from 10am PT. Register: forms.office.com/Pages/Response…
Please submit! We would love to see a wide variety of contributions for different public health modeling topics. @nlinton_epi
Please submit! We would love to see a wide variety of contributions for different public health modeling topics. @nlinton_epi
Humans doing the hard jobs on minimum wage while the robots write poetry and paint is not the future I wanted
Select boomers and millennials are looking for the same home but the former is often coming to the market equity rich and less price/rate sensitive than the latter. This has allowed boomers to overtake millennials as the top buyers in 2022
Select boomers and millennials are looking for the same home but the former is often coming to the market equity rich and less price/rate sensitive than the latter. This has allowed boomers to overtake millennials as the top buyers in 2022
You can now track CA flu cases & hospitalizations in your county and region with the new flu feature on CalCAT: calcat.covid19.ca.gov #FightFluTogether
If UC actually bargained in good faith, we would have a @UAW5810 contract after over a YEAR. I would have had *8 weeks* of leave with my infant, instead of just 4 Daycare & transit support Instead, I strike - so future parents have it better than I did.
Fundamentally the “earn to give” philosophy of effective altruism is about reallocating private resources toward public goods. Make money so that you can fund altruism. But we actually have a way less sexy, way more scalable way of doing that, called “taxes”.
Very proud of our modeling team for adding flu projections to our CalCat site, you can look at by county, region or statewide! We’re seeing an early flu season so get your flu vaccine now if you haven’t already!
Very proud of our modeling team for adding flu projections to our CalCat site, you can look at by county, region or statewide! We’re seeing an early flu season so get your flu vaccine now if you haven’t already!
Since 2020, the @MIDAS_Network coordination center has been supporting the #covid19scenariomodelinghub's projections for trajectories of the COVID-19 pandemic under alternative possible futures. The scenario modeling team has now moved on to flu... fluscenariomodelinghub.org
Interesting Q&A. Learned about these but wish WHO had more publications from their social science/behavioral insights groups: who.int/publications/m… who.int/initiatives/be…
Interesting Q&A. Learned about these but wish WHO had more publications from their social science/behavioral insights groups: who.int/publications/m… who.int/initiatives/be…
Come work with us!
Interested in public health? Want to contribute to #rstats 📦 development? We are working on {epinowcast} 0.1.0 and have some issues for you. github.com/epiforecasts/e…
Non academic (Remote, USA) Interested COVID-19, policy, and disease modeling? The CDPH COVID Modeling Team is recruiting a paid, remote, part-time summer intern with @LAWhite_Ecology @tomasmleon at @CAPublicHealth More details: iddjobs.org/jobs/intereste…
Our health care heroes continue to do the impossible and remain strong during the fight against #COVID19, but together we can help reduce the stress on our health care system by doing what’s possible: vaccinating and boosting, wearing a mask, and staying home when sick.
This echo chamber promotes provocative statements and a rush to be first rather than correct (or even just well supported by the evidence). It elevates those who chose a stance and defend it absolutely. It favors frequency of message over novelty of content 2/

Chris Hoover @Pres_Hoover_II
377 Followers 815 Following Epidemiology, data, biosecurity, etc. But mostly complain about sports anymore Views my own
Mauricio Santos-Vega @msantosvega
665 Followers 609 Following Assistant professor , Universidad de los Andes. Ecology and evolution of mosquito-borne diseases (Climate and Health)
Nathan Lo @NathanLo3579
2K Followers 1K Following @Stanford physician-scientist | Infectious diseases, epidemiology, modeling, and public health | Views mine | Lo Lab: https://t.co/iaZAmq2Xdb
Anoop Jain @Fruit_noops
562 Followers 1K Following Founder of @Sanrights | Assistant Prof @BUSPH | Preferential sanitation options for the poor | Normalize the mid-day nap | Real Gs move in silence like lasagna
Idirijee @Idirijee664
10 Followers 399 Following
JustinBennett_ @XRPP_Productio1
78 Followers 2K Following Husband, dad, and FT trader. Trade with me on BloFin (no KYC) https://t.co/CcvnTYdHiz (affiliate link). Deposit $1k+ for trading group access.
Nessia @KokinNatsu30696
76 Followers 7K Following
Clesmeat @ClesmeatGmbE
16 Followers 537 Following
Sham @Sham1054184
63 Followers 4K Following
binta_barry @binta_barry001
164 Followers 7K Following The Bible is rich in wisdom about God’s love for people living in poverty — and about our responsibility to help. We love the way Jesus showed us how to care
Evelyn @shimomiyar81757
92 Followers 7K Following
Louisa @kanmonmaya53688
36 Followers 3K Following
Laura Parker @LauraParke11297
55 Followers 736 Following
Bess @MNudde40810
16 Followers 2K Following In the face of all kinds of difficulties in life, if you retain even half of your cuteness and gentleness, you will be the winner.
Korryn Bodner, PhD @KorrynBodner
274 Followers 585 Following Infectious diseases, pandemic prevention, forecasting, ecological interactions, networks & decision-making. Loves nature, exercise & whiskey (order negotiable).
Maya Petersen @DrMayaPetersen
466 Followers 101 Following Professor at UC Berkeley School of Public Health who works on causal inference, computational precision health, biostatistics, global health, HIV, and COVID-19
Mandy Gomez-Weaver @AK_GomezWeaver
120 Followers 313 Following interested in how humans are messing with infectious diseases loves Philly apocalyptically PhD @UCB_EHS
Edward Hill @EdMHill
1K Followers 858 Following Researcher in mathematical epi & modelling of infectious disease dynamics. Views my own. Linked to @LivUniCHIL @LivUniIPH @ThePandemicInst @JuniperConsort1.
elon musk ox @alt_dave_smith
556 Followers 919 Following father of daughters. lover of paint brush. eradicate malaria. he/his. black lives matter. mask up. fascism sucks. 🇺🇦
Juliet Pulliam, PhD (... @jrcpulliam
5K Followers 520 Following Director, South African DSI-NRF Centre of Excellence in Epidemiological Modelling and Analysis (#SACEMA), Stellenbosch University No longer on Twitter.
RR @miss33431
411 Followers 4K Following With a healthy body, we can accomplish more things we want to do
Linda @lisi_dai
71 Followers 951 Following
Yoshika Crider @YoshikaCrider
125 Followers 286 Following Postdoc at Berkeley CEE (she/her) | global health, safe water, gender equity | @ERGBerkeley PhD
Sam Scarpino @svscarpino
10K Followers 2K Following Scientist. Director @Experiential_AI, Faculty @Northeastern, @sfiscience, @uvmcomplexity; Cofounder @globaldothealth. Now @ https://t.co/aAQzm0G0mf
cristincwyoung @cristincwyoung
2 Followers 38 Following
Jake Pry @jakepry_epi
37 Followers 33 Following senior epidemiologist @CAPublicHealth | global health researcher HIV/NCD co-morbidity @cidrzinfo | faculty @UCDavisHealth | he/him | views are my own
Sam Abbott (@seabbs@f... @seabbs
3K Followers 846 Following Real-time infectious disease modelling. Developing methods for outbreak response, surveillance, and pandemic preparedness. https://t.co/qIESZxy6rY
Alexander Yu @AlexTHYu
239 Followers 231 Following Infectious Diseases MD at CA DPH via @StanfordMed @MGHmed / #PublicHealth Epi/ #Wastewater PH / #ClimateChange Infectious Disease/ Views own / Cautious Optimist
Ellicott Matthay @EMatthay
1K Followers 506 Following Asst Prof @nyulangone Pop Health Epi. Alum @ucsf @UCBerkeleySPH @IHME_UW. Social epi, causal inference, policies, health equity, violence, drugs, alcohol.
EEID2023 @eeid2023
767 Followers 350 Following Ecology and Evolution of Infectious Disease Conference returns to Penn State
Shelley DeVost @shelleydevost
457 Followers 3K Following Epidemiology PhD student. (ABD!) She/they. Imagine others complexly. #epitwitter
Jason is a tired epi ... @multimodal_epi
534 Followers 2K Following Applied epi. Health equity, 🚆, 🦠, gov’t, Catholicism, 🇵🇭, 🎳, sci🧪📊, & Dodgers⚾️. He/him/siya. @UCDavis, @CSTENews AEF alum. #ValueScientists. My views.
Jose Luis Herrera D. @diestra77
637 Followers 2K Following Father of Darelle and Luis David. Love science, reading, music; addicted to passionate people. For those who love what they do, will always do what they love :)
Zareh “Z” Zurabya... @ZBiotechGuy
530 Followers 4K Following 🥷 🤫 Founder Stealth Mode Biotech SaaS🧬👨🎓#AI in #Biopharma @Harvard & @MIT 🦾Head of @eLabNext 📈
Marko Mijic @MarkoMijic
2K Followers 2K Following Dad. Husband. Son. Brother. Former @Cal_HHS Undersecretary. #HHS44 alum. @UUtah and @AmericanU alum. All posts and opinions are my own.
Webster Research Grou... @JoWebster_Group
2K Followers 883 Following One Health research @RoyalVetCollege & Director @NTDResearch @ImperialMed to aid knowledge, prevention and treatment of neglected tropical/zoonotic diseases.
Pauline Padrul @Paulinepadrul
82 Followers 296 Following LCSW, MPH candidate @ucberkeleysph, Fellow-Digital Transformation of Development (DToD) @NSF
Drew Armstrong @ArmstrongDrew
29K Followers 3K Following Executive Editor, Endpoints News (@endpts). Got a confidential tip? Message me on Signal: DrewArmstrong.39
Gail Sondermeyer Cook... @glsonde
5 Followers 58 Following Infectious disease epidemiologist focusing on mycotic diseases
Marisa Donnelly @MAPdonnelly
572 Followers 515 Following Infectious disease epi 🦠, wastewater 💩, health equity ⚖, CDC EIS Alumni 🕵🏼♀️ NYC-based 🌇 PhD from @ucdavis 🐎 views are my own 💜
ISHFAQ AHMAD @ISHFAQA76531750
117 Followers 880 Following Postdoctoral Scholar, Cancer Early Detection Advanced Research Center, Knight Cancer Institute's, Oregon Health & Science University
Camila Barrera @CamilaASB13
102 Followers 852 Following NIH DS Fellow @UCSF | MPH @UCB_EHS @UCBerkeleySPH |🇨🇴
Rachel Sklar, PhD �... @Sklar_R
522 Followers 2K Following Postdoc @UCSF_PRHE. PhD @UCBerkeleySPH. Research: air pollution, WASH, occupational health. Co-founder @PitVidura. CA native. ☀️
Bridget Armstrong @b_talksnerdy
107 Followers 265 Following stats, my emotions, and variances there between:: she/her pronouns
Derek Cummings @datcummings
1K Followers 470 Following
bean counter @guacamolebio2
32 Followers 163 Following i'm back. ish. mostly shitposts, but sometimes i lament about health tech modernization look, i still have an MPH even though my goal is to never use it again
Jennifer K. Peterson @jenni_peterson
516 Followers 637 Following Mom, Writer, Disease ecologist, vector-borne diseases, NTDs, Chagas disease, triatomine bugs, conservation, planetary health, human decency.
Natalie Linton @nlinton_epi
130 Followers 306 Following Infectious disease epidemiologist. Views own. she/her. Support STEM. https://t.co/DFpPLgqhCT
Patricio Ponce @PatricioPonce4
90 Followers 426 Following
Fredros Okumu @Fredros_Inc
15K Followers 5K Following Public Health Scientist & Professor of Vector Biology, Ifakara Health Institute, TZ & University of Glasgow, UK; Former Director of Science @ifakarahealth
Chris Hoover @Pres_Hoover_II
377 Followers 815 Following Epidemiology, data, biosecurity, etc. But mostly complain about sports anymore Views my own
Mauricio Santos-Vega @msantosvega
665 Followers 609 Following Assistant professor , Universidad de los Andes. Ecology and evolution of mosquito-borne diseases (Climate and Health)
Nathan Lo @NathanLo3579
2K Followers 1K Following @Stanford physician-scientist | Infectious diseases, epidemiology, modeling, and public health | Views mine | Lo Lab: https://t.co/iaZAmq2Xdb
Anoop Jain @Fruit_noops
562 Followers 1K Following Founder of @Sanrights | Assistant Prof @BUSPH | Preferential sanitation options for the poor | Normalize the mid-day nap | Real Gs move in silence like lasagna
Marc Lipsitch @mlipsitch
201K Followers 2K Following This place is getting more sinister, maybe on my way out. Director @CCDD_HSPH Tweets in personal capacity. Didn’t pay for blue check
Joan Casey @joanacasey
4K Followers 1K Following Associate Professor of Environ and Occupational Health Sciences @UW @UWDEOHS | #GIS #EHR #EnvironmentalJustice | science as a team sport | she/her
Alex Imas @alexolegimas
4K Followers 1K Following Professor at @ChicagoBooth. Economics + Applied AI. Visiting Princeton 2025-2026 academic year.
Matt Clancy @mattsclancy
9K Followers 2K Following Senior Program Officer for the Abundance and Growth Fund @open_phil. Creator of https://t.co/dYDulHqlOs. See https://t.co/6EvVGkycU7 for more.
Alex Cohen @alexwcohen
1K Followers 2K Following Principal researcher @GiveWell, @YaleEconomics PhD, shortstop for the AMSBL Padres. Mostly empirical research and global health/development. View my own.
Brad Wilcox @BradWilcoxIFS
34K Followers 3K Following Professor @UVA | Fellow @FamStudies | Fellow @AEI | Book: GET MARRIED https://t.co/wLmRAqsysH
Donald J. Trump @realDonaldTrump
109.5M Followers 53 Following 45th & 47th President of the United States of America🇺🇸
Nikos Bosse @nikosbosse
1K Followers 624 Following Trying to make the world a bit better - or at least a bit funnier. MD and PhD student in Infectious Disease Forecasting, working at Metaculus.
Lenny Bronner @lennybronner
8K Followers 2K Following currently (elections + data) @washingtonpost. previously data @sidewireinc. originally 🇦🇹
Epinowcast @epinowcast
603 Followers 329 Following We are a community of infectious disease modellers, applied epidemiologists, software developers, and others building a suite of tools for real-time analysis.
Isabel Fletcher @IsabelKFletcher
782 Followers 889 Following Climate & Health at Data for Science & Health @wellcometrust | Climate & Health scientist @IPCC_CH AR6 WGII author | previously PhD @cmmid_lshtm @UCLCBER
Tyler Austin Harper @Tyler_A_Harper
43K Followers 2K Following Staff writer @TheAtlantic. Co-host of @ttsgpod podcast. Gone fishing.
Korryn Bodner, PhD @KorrynBodner
274 Followers 585 Following Infectious diseases, pandemic prevention, forecasting, ecological interactions, networks & decision-making. Loves nature, exercise & whiskey (order negotiable).
Biomedical Data Scien... @biodatascilab
806 Followers 158 Following An innovative workshop connecting junior biomedical + data researchers across the country. Supported by @UVA, @uvadatascience, @thriv_i, @NIH. UVA IRB-SB #7080
Dylan George @dylanbgeorge
3K Followers 1K Following Director, CDC Center for Forecasting & Outbreak Analytics; former VP at Ginkgo, In-Q-Tel, USG science & tech advisor - OSTP, HHS, DoD; ...views my own...
Maya Petersen @DrMayaPetersen
466 Followers 101 Following Professor at UC Berkeley School of Public Health who works on causal inference, computational precision health, biostatistics, global health, HIV, and COVID-19
Edward Hill @EdMHill
1K Followers 858 Following Researcher in mathematical epi & modelling of infectious disease dynamics. Views my own. Linked to @LivUniCHIL @LivUniIPH @ThePandemicInst @JuniperConsort1.
Pandemic Prevention I... @PPI_Insights
12K Followers 178 Following *Archived Page* for updates follow @RockefellerFdn. | See the signal. Speed the response. Stop outbreaks. Together we can deliver a #PandemicFreeFuture.
Statistician Trump @StatisticianTr2
1K Followers 17 Following (parody) Lots of LOW-R^2 #DataScientists doing stats with Small #FakeWorldData! MAGA: Make Assumptions Great Again!! #epitwitter #statstwitter #rstats
bean counter @guacamolebio2
32 Followers 163 Following i'm back. ish. mostly shitposts, but sometimes i lament about health tech modernization look, i still have an MPH even though my goal is to never use it again
Katie Gostic, PhD @KatieMG
693 Followers 271 Following Outbreak modeler, gardener, outdoor enthusiast. Nowcasting and Natural History lead at @CDCgov Center for Forecasting and Outbreak Analytics. Opinions my own.
Yoshika Crider @YoshikaCrider
125 Followers 286 Following Postdoc at Berkeley CEE (she/her) | global health, safe water, gender equity | @ERGBerkeley PhD
Jason is a tired epi ... @multimodal_epi
534 Followers 2K Following Applied epi. Health equity, 🚆, 🦠, gov’t, Catholicism, 🇵🇭, 🎳, sci🧪📊, & Dodgers⚾️. He/him/siya. @UCDavis, @CSTENews AEF alum. #ValueScientists. My views.
Shweta Bansal @bansallab
4K Followers 883 Following Prof in infectious disease ecology & network epi @Georgetown. #netsci, #spatialepi, #bigdata, #mathbio, #openscience, she/her. @[email protected]
Sam Scarpino @svscarpino
10K Followers 2K Following Scientist. Director @Experiential_AI, Faculty @Northeastern, @sfiscience, @uvmcomplexity; Cofounder @globaldothealth. Now @ https://t.co/aAQzm0G0mf
PacMOSSI Consortium @PacMOSSI
236 Followers 166 Following OUR GOAL is to support Pacific Island countries to strengthen vector surveillance and control to prevent, contain and control mosquito-borne diseases.
Julia Epi @EpiJulia
296 Followers 72 Following #OpenSource research community developing an epidemiological data management and simulation modelling ecosystem in #JuliaLang.
Hiam Chemaitelly @HChemaitelly
133 Followers 159 Following Assistant Professor in Infectious Disease Epidemiology at Weill Cornell Medicine-Qatar, Cornell University
Jake Pry @jakepry_epi
37 Followers 33 Following senior epidemiologist @CAPublicHealth | global health researcher HIV/NCD co-morbidity @cidrzinfo | faculty @UCDavisHealth | he/him | views are my own
Alexander Yu @AlexTHYu
239 Followers 231 Following Infectious Diseases MD at CA DPH via @StanfordMed @MGHmed / #PublicHealth Epi/ #Wastewater PH / #ClimateChange Infectious Disease/ Views own / Cautious Optimist
Rodrigo M. Corder @CorderRM
133 Followers 732 Following PhD | Mathematical/statistical modeling of infectious diseases
EEID2023 @eeid2023
767 Followers 350 Following Ecology and Evolution of Infectious Disease Conference returns to Penn State
https://bsky.app/prof... @tmcw
14K Followers 2 Following not using twitter anymore. https://t.co/PtubFCpGBJ https://t.co/ZckGEmD0Ob https://t.co/Bq05CWsrnj
Meaghan Kall has move... @kallmemeg
57K Followers 2K Following Epidemiologist, public health trainee, mom, wife. Formerly @UKHSA. Disability advocate. Born 🇺🇸 Migrated 🇬🇧. 🏳️🌈 Personal account, obvs.
Sam Abbott (@seabbs@f... @seabbs
3K Followers 846 Following Real-time infectious disease modelling. Developing methods for outbreak response, surveillance, and pandemic preparedness. https://t.co/qIESZxy6rY
Natalie Linton @nlinton_epi
130 Followers 306 Following Infectious disease epidemiologist. Views own. she/her. Support STEM. https://t.co/DFpPLgqhCT
Webster Research Grou... @JoWebster_Group
2K Followers 883 Following One Health research @RoyalVetCollege & Director @NTDResearch @ImperialMed to aid knowledge, prevention and treatment of neglected tropical/zoonotic diseases.
Internal Tech Emails @TechEmails
583K Followers 881 Following Internal tech industry emails that surface in public records. 🔍
Ellicott Matthay @EMatthay
1K Followers 506 Following Asst Prof @nyulangone Pop Health Epi. Alum @ucsf @UCBerkeleySPH @IHME_UW. Social epi, causal inference, policies, health equity, violence, drugs, alcohol.
Marisa Donnelly @MAPdonnelly
572 Followers 515 Following Infectious disease epi 🦠, wastewater 💩, health equity ⚖, CDC EIS Alumni 🕵🏼♀️ NYC-based 🌇 PhD from @ucdavis 🐎 views are my own 💜
Derek Cummings @datcummings
1K Followers 470 Following
Rebecca Borchering @rkborchering
252 Followers 212 Following Infectious disease dynamics | ecology | epidemiology Current postdoc at Penn State 🦁. UF 🐊 and ASU ☀️👿 alum.
Marko Mijic @MarkoMijic
2K Followers 2K Following Dad. Husband. Son. Brother. Former @Cal_HHS Undersecretary. #HHS44 alum. @UUtah and @AmericanU alum. All posts and opinions are my own.
Ryan McCorvie @mccorvie
179 Followers 592 Following probability theory, functional programming, backgammon and bird dogs