Brandon Hayes
@brandonhayes.bsky.social
3K followers 510 following 160 posts
Researcher in infectious disease dynamics, somewhere between stats math and epi @INRAE-ENVT || Enthusiast of record shops, bookstores, and cafes, especially if there's a cat || Team oxford comma, even more team em-dash.
Posts Media Videos Starter Packs
Reposted by Brandon Hayes
seabbs.bsky.social
This is today at 3pm uk time. As a change of pace I think there will be a fairly heavy #julialang component
seabbs.bsky.social
For this weeks #epinowcast seminar at 3pm UK time online we have Sandra Montes speaking about dynamic survival analysis and optimal control policy for infectious disease modelling.

www.epinowcast.org/seminars/202...
Sandra Montes - Optimisation and Dynamic Survival Analysis: Towards a Toolkit for Epidemic Preparedness – Epinowcast
Epinowcast community site
www.epinowcast.org
Reposted by Brandon Hayes
tah-sci.com
I love this. Explainer: There are 100 outcomes (all squares) each equally likely. Wiggly lines event happens 20% of the time; grey event happens 30% of the time. >
davidkbutler.bsky.social
This came up in the staff meeting today: how the ordinary English meaning of the word “independent” does not describe at all how a Venn diagram looks, and what to do to fix that. #MathSky www.adelaide.edu.au/mathslearnin...
A collection of nine diagrams. Each is a ten-by-ten grid with a four-by-five rectangle in its bottom left corner shaded with wavy lines. Each also has a five-by-six rectangle shaded in grey, overlapping with the wavy-shaded rectangle by a different amount in each diagram. They each have a label underneath too.
In the first diagram, the grey rectangle covers the wavy-shaded rectangle completely and the label says “Not independent”.
In the second diagram, the two rectangles overlap on 15 squares and the label says “Not independent”.
In the third diagram, the two rectangles overlap on 12 squares and the label says “Not independent”.
In the fourth diagram, the two rectangles overlap on 8 squares and the label says “Not independent”.
In the fifth diagram, the two rectangles overlap on 6 squares and the label says “Independent!” in capital letters.
In the sixth diagram, the two rectangles overlap on 4 squares and the label says “Not independent”.
In the seventh diagram, the two rectangles overlap on 2 squares and the label says “Not independent”.
In the eighth diagram, the two rectangles overlap on 1 squares and the label says “Not independent”.
In the ninth diagram, the two rectangles do not overlap and the label says “Not independent”.
Reposted by Brandon Hayes
themerl.bsky.social
yeah we're into LLMs (Large Lamb-bridge Models)
A herd of sheep move across a marshy bridge.
Reposted by Brandon Hayes
zachweinersmith.bsky.social
Incidentally, in my experience this is the ultimate way to tell an arts nerd from a stem nerd. Arts nerd like the aesthetics of the left side, stem nerds like the logic of the right side. Linguists, being right at the periphery, refuse to choose sides.
brandonhayes.bsky.social
Chuffed to announce that registration for the HPAI Modelling Challenge is now open! Interested in testing your modelling team's outbreak response capabilities in a synthetic, peacetime setting? Want to contribute to the improvement of HPAI epidemic preparedness? Check out below:
hpai-mod-challenge.bsky.social
🚨 Registration is OPEN 🚨
Join the International Mathematical Modelling Challenge on HPAI!

Participate alongside other modelling teams as you:
🌍 simulate outbreaks
🧮 test management strategies
🤝 strengthen epidemic preparedness

#HPAIModChallenge #HPAI #Epidemiology #OneHealth #DiseaseDynamics
Reposted by Brandon Hayes
adamjkucharski.bsky.social
Recently came across the really useful term 'Moat of Low Status' from Cate Hall. It describes why we find it so difficult to take steps required to fulfil our ambitions - if we're already good at one thing, it's hard to endure being bad at something else.
Learn to love the Moat of Low Status
It hurts, but less than you think
usefulfictions.substack.com
Reposted by Brandon Hayes
nytpitchbot.bsky.social
Whether it's Democrats making it harder for kids to get cigarettes or Republicans making it harder for kids to get vaccines, both sides have imposed the will of government on America's children.
brandonhayes.bsky.social
When Woody Guthrie proclaimed “This Machine Kills Fascists” this is exactly what he meant 🇺🇸 youtu.be/PL0oB1gbZE4?... #SongoftheYear
The Ballad of Big Balls
YouTube video by Jesse Welles
youtu.be
Reposted by Brandon Hayes
marynmck.bsky.social
Bsky is so disseminated that you never know who is seeing what. So I want to be sure that people see that the foremost public and global health law theorist in the US, Lawrence Gostin of Georgetown Law, is here on Bsky and doesn't have nearly enough followers. Fix that, folks.
gostin.bsky.social
So, today I finally got an official letter firing me from the scientific board of NIH's Fogarty International Center. The letter read: You "serve at the pleasure of the Secretary of Health and Human Services. As such, your appointment has been rescinded"
Reposted by Brandon Hayes
iddjobs.org
IDDjobs @iddjobs.org · Aug 26
2 x Postdocs (Berkeley, CA, USA)
Infectious-disease modelling & phylodynamics for pandemic preparedness
with ‪@charleswhittaker.bsky.social
at @petal-team.bsky.social@ucberkeleyofficial.bsky.social‬ ‪@berkeleypublichlth.bsky.social
More details: http://iddjobs.org/jobs/2351
brandonhayes.bsky.social
nothing innocent about a pie chart!
brandonhayes.bsky.social
The most important takeaway: this is *not* a situation where reaction will be sufficient. If prevention measures fail—and by all current appearances, they appear to be heading in that direction—the human, animal, and economic toll may be staggering. 7/7
brandonhayes.bsky.social
Vector-borne epidemics tend to explode once a threshold is crossed. Individual livestock cases will go unnoticed until there are simultaneous outbreaks, and by the time an infestation is noticed, multiple herds in a region will be affected, requiring a large coordinated response. 6/7
brandonhayes.bsky.social
Look at West Africa’s battle with Old World Screwworm since 2023: 1000s of cases, freq wound care and anti-parasitic administration, huge cross-sector response… Btw, there isn’t an approved treatment for NWS—all parasiticides would be off-label. Veterinary demand alone would be staggering. 5/7
brandonhayes.bsky.social
What human health tolls? Agriculture is already one of the most stressful occupations, and no shortage of studies show the *intense* physical and mental health toll epizootics have on farmers and ag workers. 4/7
brandonhayes.bsky.social
†i am very much not an economist
brandonhayes.bsky.social
Texas is home to ~12 not 7 million cattle. Herd sizes and production systems in the report are outdated, there's no trade disruption, it assumes rapid SIT deployment, doesn't include response costs, etc. I'd venture† the $1.8B figure is off by *an order of magnitude* (at least in final costs) 3/7
brandonhayes.bsky.social
Economically? NWS isn't just loses to cattle futures. The USDA economic estimates are a useful start, but the (conservative) conclusions were extrapolated from data from *50 years ago*. 2/7
brandonhayes.bsky.social
Screwworm is making headlines because of this rare imported human case, but a slightly important omission from these articles is just how *insanely catastrophic* a New World Screwworm (NWS) epidemic would be on people, livestock, pets, and the US economy. 1/7
brandonhayes.bsky.social
Love all those calligraphic letters we get to use in stat formulas. I hope other disciplines get to experience the joy of writing a fancy Y rather than the regular boring one.