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Christophe Veltsos Profile
Christophe Veltsos

@DrInfoSec

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13,587
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University prof. on cyber risk & systemic risk | He/him | Posts/RTs lots on #Covid #LongCovid . Covid is sig. systemic risk. #COVIDisAirborne #MaskUp #IAQ #AirQ

Bluesky:@drinfosec.bsky.social
Joined November 2008
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@DrInfoSec
Christophe Veltsos
8 months
I want to say a big thank you to the #Covid community here on Twitter. Thank you for helping all those who listen navigate through these ongoing challenging times as we do our best to navigate in a sea of SARS-CoV-2. You led when "leaders" failed us. May you stay safe in 2024.
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@DrInfoSec
Christophe Veltsos
9 months
@TheChalis FYI, shared this thread on bsky as there's a lot more Covid-cautious folks there today than there was 2months ago.
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@DrInfoSec
Christophe Veltsos
3 months
@Engineer_Wong Wow! Better have all that blackboard dust in the filter than in kids' lungs.
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@DrInfoSec
Christophe Veltsos
4 years
Deepfake queen to deliver Channel 4 Christmas message [That's one way to create an awareness message about the power and danger of deepfakes]
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@DrInfoSec
Christophe Veltsos
9 months
@brownecfm Thank you Conor for your explanation of Covid risks & the value of mitigations (even when risks are still > 0). "Risk mitigation is NOT binary" is a good statement for us to keep reminding ourselves (as our brains tend to go to 0s & 1s).
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@DrInfoSec
Christophe Veltsos
5 months
@zalaly @CBCRadioCanada Great metaphor by Dr. @zalaly 👏👏
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@DrInfoSec
Christophe Veltsos
3 months
Waiting for a medical appointment... CO2 levels in waiting room are 1200ppm (so about 2% of air is rebreathed). Thankful for my well-fitting & comfortable respirator.
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@DrInfoSec
Christophe Veltsos
3 months
@DaniBeckman Welcome back, Dr. Beckman. We're thankful for the work you do.
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@DrInfoSec
Christophe Veltsos
5 months
@LolaGerms Thank you Lola for sharing this perspective. 🙏 I wish countries would compete with one another on stealing the best ideas from each other instead of the worst. 🤔
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@DrInfoSec
Christophe Veltsos
5 months
@lucyveepee Oh, you mean "spacious" as in an indoor space with poor ventilation where a good % of breaths are from someone else? Like airplane spacious. 😉
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@DrInfoSec
Christophe Veltsos
7 months
@hillygirl1939 Lots of folks here are feeling this. Thank you for putting it into words. 🙏 And thanks to the communities here (& other platforms) for the validation & support.
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@DrInfoSec
Christophe Veltsos
8 months
@michael_hoerger I loved that example: "Data-rich public health dashboards that use low-quality metrics and/or don’t change public health recommendations as risk increases." We've seen a fair share of those in the past 4 years.
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@DrInfoSec
Christophe Veltsos
7 months
@markdixontweets @mchristinebd Nice! I think the Filter heading might be a bit clearer if it said "Filter Indoor Air" And for ventilate section, it might also be worth specifying: ventilate before, during, and after (event/gathering)
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@DrInfoSec
Christophe Veltsos
8 months
@scott_squires Since I haven't watched it yet (but I do wear a mask 😷) I asked:
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@DrInfoSec
Christophe Veltsos
6 months
@michael_hoerger Indeed. Higher now than same time in previous years (2020-21; 2021-22; 2022-23):
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@DrInfoSec
Christophe Veltsos
8 months
@1goodtern One word: compartmentalization. Compartmentalization of their thought processes (and not of the BSL3 SARS-CoV-2 pathogen since the world has decided to let that run loose).
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@DrInfoSec
Christophe Veltsos
5 months
@inkblue01 So many masks. 👏
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@DrInfoSec
Christophe Veltsos
4 months
@NukitToBeSure Nice arrangement of Nukit Torches on the table 👏 #CovidPrecautions #COVIDIsAirborne
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@DrInfoSec
Christophe Veltsos
7 months
I created a PDF of Dr. Al-Aly's #HELPLongCovid speech in which I used his written testimony to fix the garbled/missing audio. Link to PDF:
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@DrInfoSec
Christophe Veltsos
7 months
@DurianLiftOff @warrington_sue @DavidJoffe64 Durian, this is amazing. It needs a proper send-off not just a mention in a reply. BTW, 👏 for "You are free to disagree with anything you read here, provided that you have an authentic, evidence-based argument for it."
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@DrInfoSec
Christophe Veltsos
9 months
@broadwaybabyto Beautifully said. Thank you Kelly 🙏 for reminding us of our own vulnerable state & that things rn are very challenging for many with chronic conditions.
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@DrInfoSec
Christophe Veltsos
8 months
If you read only one thing today, make it this thread 👇
@shivani_chdhry
Shivani Chaudhry
8 months
For most people, getting Covid was a disruption that passed. But for the millions who developed #LongCovid , that disruption has been persistent – for years. After 32 months of living with this complex chronic illness, here are some reflections...🧵
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@DrInfoSec
Christophe Veltsos
6 months
@NohaAboelataMD Nicely done, Dr. Aboelata. 😄👏 You're part of the random folks on Twitter that have shown more leadership (+humor+humility) than our so-called PH leaders.
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@DrInfoSec
Christophe Veltsos
11 months
@alexandrite113 The past year makes the doomsday shows & movies feel a lot closer to reality than they've ever felt before.
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@DrInfoSec
Christophe Veltsos
6 months
@mavisclare Thank you for this. 🙏
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@DrInfoSec
Christophe Veltsos
7 months
@GaloresCircus I also like this one but obviously the person would need to be open to reading about COVID strategies from other countries: The COVID-safe strategies Australian scientists are using to protect themselves from the virus
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@DrInfoSec
Christophe Veltsos
7 months
@zalaly Thank you. Could you post your testimony transcript as your audio was garbled for about 2-3 minutes (both on live & recording)?
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@DrInfoSec
Christophe Veltsos
6 months
@michael_hoerger Yes, anyone should be able to get a "care package" like this. 👏 It would actually be better for the economy (short term & long term).
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@DrInfoSec
Christophe Veltsos
4 months
If you read only ONE thing this month about C0v1d make it this 👇 Does the public understand that "variant" means "vaccine resistant"? by the brilliant @julia_doubleday
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@DrInfoSec
Christophe Veltsos
9 months
@HendrixLeslie @cvspharmacy What a disgrace. Is this the level of customer service we can expect now?
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@DrInfoSec
Christophe Veltsos
6 months
@JessicaLexicus Thanks for the update & glad this new project can be both financially beneficial & a creative outlet. Many here have enjoyed your articles & we'll just have to re-read the ones already written. 😉 [ There's a good chance Covid will still be here when you're ready to be back. 😵‍💫]
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@DrInfoSec
Christophe Veltsos
8 months
@KristieDeGaris 💯 And for me it's also the disappointment of the way PH & govt leaders have ignored the warnings and have failed to step up awareness & preparations. "Is this the level of (PH) service we can expect now?" keeps coming to mind.
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@DrInfoSec
Christophe Veltsos
8 months
@robynasaldino And here's Mike's Covid weather forecast... peaking on Jan 10th:
@michael_hoerger
Mike Hoerger, PhD MSCR MBA
8 months
1/ PMC COVID-19 Tracker, Dec 18, 2023 We are headed into potentially the 2nd largest COVID surge all-time in the U.S. If #wastewater levels follow historic trends, we will reach 2 million infections/day at peak surge with 4.2% of the population actively infectious on Jan 10.
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@DrInfoSec
Christophe Veltsos
1 year
@LauraMiers Thank you Laura for what you've shared with the folks who wanted to learn about C and LC. You have been a beacon of clarity and truth in these challenging times.
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@DrInfoSec
Christophe Veltsos
6 months
@michael_hoerger Mike: I think this is the source for that JAMA article; is that right? Prevalence of Immunosuppression Among US Adults | Allergy and Clinical Immunology | JAMA
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@DrInfoSec
Christophe Veltsos
8 months
@inkblue01 Connecting the dots in 3 2 1 ... Oh well, there's always next year. 😉
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@DrInfoSec
Christophe Veltsos
2 months
@DaniBeckman It's like a runaway train that you know is heading right for us.
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@DrInfoSec
Christophe Veltsos
8 months
As the year wraps up, I'm thankful for the army of Covid warriors/survivors, researchers, and advocates. 🙏 Your experiences, warnings, expertise, and communications have helped lots of people (& me) by supporting, by educating, & ultimately by protecting against SARS-CoV-2.
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@DrInfoSec
Christophe Veltsos
10 months
@plantypotter That could be a 2024 calendar theme: a bunch of tradespeople wearing masks to protect themselves from the airborne risks inherent to their craft.
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@DrInfoSec
Christophe Veltsos
7 months
@dforsthoffer @Dakota_150 Thanks Diana. Link to src:
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@DrInfoSec
Christophe Veltsos
7 months
@Cheshire_Kat11 Some people know (about masks). And when they also have empathy (or are at least willing to mirror), the combination of the two is remarkable. 👏👏👏
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@DrInfoSec
Christophe Veltsos
8 months
@LauraMiers Thank you Laura 🙏. I hope these kinds of receipts can eventually be shared with archives (like nat/l archives & big U. libraries) to serve as foundations & warnings for future generations.
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@DrInfoSec
Christophe Veltsos
4 months
When will we get a #CleanAir act in the USA?
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@DrInfoSec
Christophe Veltsos
8 months
@KRaymerBishop Dang, I've been having that same sinking feeling as well. The worst part is that this is round two, we KNOW what works, we can SEE the signs, and yet govts & PH aren't even doing the bare minimum.
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@DrInfoSec
Christophe Veltsos
5 months
@DaniBeckman Thank you Dr. Beckman for saying it so clearly. 🙏
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@DrInfoSec
Christophe Veltsos
1 year
@dontwantadothis I saw this on another thread (don't have the OP handy). This worked for me: Long COVID Is Being Erased—Again - The Atlantic
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@DrInfoSec
Christophe Veltsos
3 months
@PobudaTanya Link to the original tweet from StatCan with that same image for any of the folks that want a ref:
@StatCan_eng
Statistics Canada
9 months
Our new study examines #COVID19 infections (including reinfections), long-term symptoms and their impact on the Canadian adult population more than three years since the beginning of the pandemic. To learn more: .
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@DrInfoSec
Christophe Veltsos
9 months
@ApricotTreeCaf1 Congrats, you've been a role model for how the hospitality industry and the retail sectors could be —no, should be— doing Covid precautions. 👏👏👏
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@DrInfoSec
Christophe Veltsos
11 months
@Friesein Check out this piece by @JessicaLexicus : Covid Causes Much More than Brain Fog
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@DrInfoSec
Christophe Veltsos
1 year
@mocoband @fitterhappierAJ @PRPAREXCEL This slide is powerful (from CDC slide deck, preso by Mayo MD):
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@DrInfoSec
Christophe Veltsos
1 year
@kristinaEBP 💯. #WordsMatter and they frame how information is received and processed / acted upon. #CovidProtections #CovidProtectionsInSchools #CovidProtectionsInHealthcare
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@DrInfoSec
Christophe Veltsos
1 year
@JessicaLexicus Great advice, as usual. This 💯: "Pandemics and disasters don’t happen out of nowhere. There’s plenty of warnings and red flags. We don’t have to live in fear. We just have to pay attention."
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@DrInfoSec
Christophe Veltsos
4 months
@DaniBeckman Thanks for the heads up. There are still many C & LC folks following that account (40+ of folks from what I can see).
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@DrInfoSec
Christophe Veltsos
6 months
@Engineer_Wong @kary_cee Thanks for the explanation Engr Wong. I wanted to learn more on the topic and I found this video quite useful in understanding laminar and turbulent flows:
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@DrInfoSec
Christophe Veltsos
9 months
@keetmuise Any minute now global leaders could decide "this is an all-hands-on-deck-moment." Yet we're still waiting & every day more get infected (& run their luck with LC).
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@DrInfoSec
Christophe Veltsos
6 months
@dontwantadothis Thank you for writing this 🙏 BTW, if you haven't seen this thread 👇 worth a read:
@baddestmamajama
Jessica Ellis
6 months
Re: That Article but also just relationships, something I’ve learned over 14 years of marriage is that there are lines and walls. Lines can be negotiated and compromised around. You hate their mom. They don’t like ironing. These are lines.
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@DrInfoSec
Christophe Veltsos
11 months
@brownecfm The total C19 deaths/million (as of Sept 2023) speak volumes: "Japan – 603; New Zealand – 638; South Korea – 694; Australia – 874; Norway – 1,040; Canada – 1,382; Denmark – 1,498; Ireland – 1,833; Germany – 2,099; Sweden – 2,348; Northern Ireland – 2,861; US – 3,332; UK – 3,397."
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@DrInfoSec
Christophe Veltsos
6 months
@NohaAboelataMD "We've turned the corner." "We're turning the corner." "Post-pandemic..." "Now that we're back to normal..." "In this new normal..."
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@DrInfoSec
Christophe Veltsos
5 months
@DaniBeckman Thank you for sharing these kinds of reputable studies, Dr. Beckman, and for your continued messaging on the dangers (to the brain) posed by SARS-CoV-2. 🙏
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@DrInfoSec
Christophe Veltsos
8 years
FTC: “PCI DSS cert. is insufficient in & of itself to establish the existence of reasonable security protections."
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@DrInfoSec
Christophe Veltsos
9 months
@MLS_Dave Thanks Dave for your Covid weather report of sorts. 🙏
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@DrInfoSec
Christophe Veltsos
5 months
@antiviral_mktng At this early stage, curiosity (what could go wrong) and the precautionary principle just be the key principles driving our approach.
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@DrInfoSec
Christophe Veltsos
10 months
@kprather88 Thank you Dr. Prather for sharing this important context 🙏. And thank you as well for your work providing clear and accurate information when those who have official responsibilities to do so in PH have let us down.
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@DrInfoSec
Christophe Veltsos
2 years
@yamihere333 @MLevantovskaya Not quite. One way masking isn't as effective as all way masking. Everyone should mask, all the time. That's also the better DEI approach.
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@DrInfoSec
Christophe Veltsos
6 months
Latest CDC Household Pulse survey data on #LongCovid : Note: I shrunk some of the blank space to make it easier to compare latest period, Jan 9 - Feb 5, vs Oct 18 - Oct 30.
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@ahhrrr
Ezra 👹
6 months
New CDC Household Pulse Survey data is out (survey conducted 1/9-2/5/24): - 6.8% of adults are currently experiencing LC (up from 5.3% in October 23) - 17.6% of adults have ever experienced LC (up from 14.3% in October 23) Details here:
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@DrInfoSec
Christophe Veltsos
6 months
@antiviral_mktng I've learned so much during these past four years. 👏
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@DrInfoSec
Christophe Veltsos
11 months
@catladyactivist @MLS_Dave WAPO: NHTSA report road deaths ease but remain above pre-pandemic levels "The [2022] estimate represents a decline of 0.3 percent compared with 2021, but an increase of almost 18 percent compared with 2019."
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@DrInfoSec
Christophe Veltsos
4 months
@inkblue01 Thanks for pointing that out. 🙏
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@DrInfoSec
Christophe Veltsos
6 months
@SKGandhiMD That's a great way to put it: "The pandemic has caused a common sense debt, not an immunity debt."
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@DrInfoSec
Christophe Veltsos
2 months
@Dave_it_up 🙏 Dave. I follow many accounts who cover the science of Covid (pathogens, Dx, Rx, impact on human systems, etc) and nearly always learn something new and different from your posts.
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@DrInfoSec
Christophe Veltsos
4 months
@zalaly @TheEconomist Thank you, Dr. Al-Aly, for sharing this report & highlighting the large potential economic burden of #LongCovid . 🙏
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@DrInfoSec
Christophe Veltsos
9 months
@covidsafenetwrk And look at the order EPA listed mitigations: [ #s below added by me] 1) increasing ventilation with outdoor air and air filtration... [and also the rest] 2) physical distancing 3) wearing cloth face coverings or MASKS 4) surface cleaning 5) handwashing 6) and other precautions.
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@DrInfoSec
Christophe Veltsos
8 months
@NjbBari3 They were fun "projects." The one on the right is a 5x P14 (PC fans) w/ 2in filters; looks like a PC tower. The left one was super easy to build (just duct tape & scissors) & runs on 5V USB so it's in my car (about 100CFM) in case school kiddo is infectious.
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@DrInfoSec
Christophe Veltsos
6 months
@LieslMcconchie Nice side by side. 🙏 Hint 1: one of these is NOT like the other. Hint 2: it's the one you can't see that you ought to be concerned about. #CovidIsNotOver
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@DrInfoSec
Christophe Veltsos
8 months
As the year wraps up, I'm thankful for the army of Covid warriors/survivors, researchers, & advocates here. 🙏 Your experiences, warnings, expertise, & communications have helped lots of people (& me) by supporting, educating, & protecting against this invisible pathogen.
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@DrInfoSec
Christophe Veltsos
11 months
@Friesein And today's thread (on short term memory) by @LauraMiers , here:
@LauraMiers
Laura Miers
11 months
I just saw a tweet that goes, “Does anyone else feel like their short-term memory has gotten scary worse?” There are 4.7 million views, 160,000 likes, 22,500 reposts, 3,500 quotes, & 3,950 bookmarks. Everything is fine! Carry on.
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@DrInfoSec
Christophe Veltsos
5 months
@julia_doubleday Thank you for sharing this 🙏. It gives hope to so many of us (that people we care about can learn to be safer). And thank you as well for the direct and engaging way that you write about this complex issue. 🙏&👏
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@DrInfoSec
Christophe Veltsos
6 months
@LolaGerms Great job Lola. When I first started watching this video, I thought: Lola should connect with @DaniBeckman . The two would be an unstoppable pair. I nearly spilled my coffee when I saw the thank you note at the end of the video. 🎉👏 to the two of you.
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@DrInfoSec
Christophe Veltsos
3 months
@Engineer_Wong Nicely done. Clean lines. Appears to keep everything in place & well protected. I agree w/ others: If possible, sell as two versions (w/ vs w/o). Otherwise, to keep costs low, sell pro w/o case. 🙏 for your designs & the way you seek input/feedback .
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@DrInfoSec
Christophe Veltsos
9 months
These charts speak volumes about the severity of Covid vs flu & RSV, both in terms of hospitalizations and in terms of deaths. 👇
@Globalbiosec
Raina MacIntyre 😷💉💉💉💉
9 months
Trends in Viral Respiratory Deaths in the United States. COVID is not the flu. COVID burden far greater than flu and RSV combined.
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@DrInfoSec
Christophe Veltsos
4 months
@wsbgnl Poof 🪄
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@DrInfoSec
Christophe Veltsos
10 months
@CRBoxFoundation For folks who have trouble accessing the piece, here's a link to a web archived version:
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@DrInfoSec
Christophe Veltsos
3 months
Regarding your recent posts @AmandaKvalsvig (from the past hour), this may be helpful even though from a US perspective: Evidence Mounts That About 7% of US Adults Have Had Long COVID
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@DrInfoSec
Christophe Veltsos
1 year
@TRyanGregory That's some great CO2 readings for anything indoors (I'm happy when I can get anything close to 600 in my house). Also neat that the humidity levels are this low around a large body of water.
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@DrInfoSec
Christophe Veltsos
13 years
Skype monitoring, Gmail hacks, & fake iTunes updates: How govts can track you http://t.co/Ciy2kfjt [Monday morning paranoia?]
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@DrInfoSec
Christophe Veltsos
7 months
@zalaly Replying to myself to make sure that folks see that the statements from all of the panelists are now live on the hearing's page:
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@DrInfoSec
Christophe Veltsos
5 months
@ahandvanish @scifri @VirusesImmunity Thanks to each of you @ahandvanish and @VirusesImmunity for your advocacy (& wise words). And thanks to @scifri for bringing this issue into focus. #Science #SciFri #Covid #LongCovid #LongCovidAwarenessDay
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@DrInfoSec
Christophe Veltsos
5 months
🎯clearly stated:
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@DrInfoSec
Christophe Veltsos
8 months
@CovidSolidarit1 Hubris is another word that comes to mind. By so many people in leadership roles. And carelessness, both for themselves & others.
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@DrInfoSec
Christophe Veltsos
6 months
@Sheep_in_fog @NjbBari3 This should be on the other side of one of @o_bel_ 's flyers about why we're being Covid cautious. The slow but cumulative impacts of ignoring the Covid science will become increasingly clear.
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@DrInfoSec
Christophe Veltsos
6 months
@drseanmullen Glad you're protecting yourself (& others) from airborne pathogens. 👏
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@DrInfoSec
Christophe Veltsos
6 months
@brownecfm Thank you Conor for taking good care of yourself so we can all continue to benefit from your risk analysis and insights during these turbulent times.
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@DrInfoSec
Christophe Veltsos
1 year
@scott_squires @BiffAndFinn If someone islooking for the PDF file instead of an image, they can find the PDF here:
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@DrInfoSec
Christophe Veltsos
8 months
@1goodtern Another mistake: failure to recognize & educate that the situation is fluid. What worked (good enough maybe) last month or last summer (under different conditions) will now need serious ratcheting up. Nothing is forever and "set & forget" is rarely a good way forward.
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@DrInfoSec
Christophe Veltsos
4 months
@ukhadds This is a wonderful thread going over some really great research. 👏 & 🙏 to you Al and your team for scientifically examining (+ explaining) the role that CO2 plays in Covid infectivity.
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