Euan Arnott (@Nucleocapsoid) / X

Euan Arnott

29.6K posts

Euan Arnott

@Nucleocapsoid

Joined September 2022

Pinned
Euan Arnott
@Nucleocapsoid
Oct 7, 2024
Pinning this to help convert between multiple alternative numbering systems in use for influenza H5N1 hemagluttinin.
Bloom Lab
@jbloom_lab
May 25, 2024
Replying to @jbloom_lab
In addition, we have made a page to help convert between the many confusing numbering schemes used to name HA mutations: dms-vep.org/Flu_H5_America… (Throughout we use H3 numbering, but other studies use other schemes)
26K
Euan Arnott
@Nucleocapsoid
Aug 31, 2024
"No, we enjoy getting sick, but we're planning to do it later in the year when we have more time to enjoy it fully". Earnest-but-casual straight face-manner very important when delivering this line (don't allow any hint of sarcasm to enter your tone).
5.1K
Euan Arnott
@Nucleocapsoid
Mar 24, 2024
Brilliant and much-needed paper *conclusively* showing SARS-2 culturable from AEROSOLS <10um and that asymtomatic produce infectious aerosols too. Great work - a MUST READ paper!
Frequency, kinetics and determinants of viable SARS-CoV-2 in bioaerosols from ambulatory COVID-19...
From nature.com
12K
Euan Arnott
@Nucleocapsoid
Jun 22, 2024
Folks, why is Flu-A in sewage so high REPEATEDLY in *Illinois*? No reported H5N1 in cows in IL CDC website data
34K
Euan Arnott
@Nucleocapsoid
Jul 6, 2025
It is an odd co-incidence that the sudden "ethos change" that caused CHILDREN to be off school sick more oftem happened at precisely the same time in TEACHERS too. The even bigger co-incidence: these two "attendance ethos" changes occurred after we let SARS-2 circulate freely.
Cat in the Hat 🐈‍⬛ 🎩 🇬🇧
@_CatintheHat
Jul 5, 2025
Replying to @grahamchatterl2 @NatasciaMF and @Ninawildflower
Here’s the data for pupil & teacher absences in England in 2023/24: Compared to PRE-PANDEMIC rates: 🔎Pupil absences DUE TO ILLNESS were 40% higher 🔎Teacher absences DUE TO ILLNESS were also nearly 40% higher 🔎Spend per pupil on supply teachers was also nearly 40% higher
5.6K
Euan Arnott
@Nucleocapsoid
Aug 28, 2025
Following @skeuomorphology mapping of English COVID PCR positivity in 2025 has felt like being a frog in a rather slowly warming pot of water (with occasional hotspots...), so I compared Aoril 3rd with August 28th to help emphasize the significant overall increase:
5.5K
Euan Arnott
@Nucleocapsoid
May 13, 2024
Replying to @SolidEvidence
Fresno just had their annual Raw Milk Festival, including frozen raw milk to take away for your cat (I kid you not - Google it!): wonder if there could be any linkage to SF Flu-A spikes in waste-water?
9.6K
Euan Arnott
@Nucleocapsoid
Mar 17, 2025
Great news! Enormous Midwestern outbreak of H5N1 that so devastated poultry in Ohio & Indiana over past few months is whole NEW genotype, ⭐D1.3⭐ that USDA & CDC just "forgot" to tell us about! (despite HUMAN case) New D1.3 has swapped American NA of D1.1 for N1 from A3. 1/3
11K
Euan Arnott
@Nucleocapsoid
Aug 6, 2024
Colorado's testing for H5N1 in farm milk tanks has PAID OFF immediately with extra detections. Testing bulk tanks is *regular & compulsory*: this is the way to tackle bovine H5N1!
FluRadar
@FluRadar_
Aug 6, 2024
Replying to @FluRadar_
Update: Colorado reports 10 new dairy cases confirmed on Aug 5. Nine cases were identified through bulk tank testing.
5.2K
Euan Arnott
@Nucleocapsoid
Oct 31, 2024
Florian Krammer review on antibody responses to influenza (2019). Found this review *really* well written - it flows smoothly & text is remarkable "free standing" despite copiious referencing: a tribute to author's deep personal knowledge!
The human antibody response to influenza A virus infection and vaccination
From nature.com
4.4K
Euan Arnott
@Nucleocapsoid
Jun 20, 2025
Was bit surprised our switch over to >50% XFG & NB.1.8* in UK (expected late May / early June) had not so far given rise to more noticeable kick in PCR positivity - one of our few remaining proxies for prevalence. But here *is* a clear up-tick in a SYNDROMIC measure from UKHSA:
2.7K
Euan Arnott
@Nucleocapsoid
Aug 29, 2025
🚨 BA.3.2 in Perth sewage (15%) So glad @Mike_Honey_ is watching, and that Western Australia still has waste-water surveillance in Perth. That is quite the kick-off. Caveat of single data point, but sweep look increasingly likely? @LongDesertTrain @SolidEvidence @JPWeiland
3.6K
Euan Arnott
@Nucleocapsoid
Aug 2, 2024
Replying to @beansprouts_mom
You can catch it at your work (Just the place it will lurk!) Don't trust those who say "Just a cold!" (That one sure is getting OLD!) All those poor Olympic swimmers coughing at the pool, Quite reminded me of my kids' unventilated school!
686
Euan Arnott
@Nucleocapsoid
Nov 1, 2024
Replying to @JPWeiland
Re-assortment rather than recombination, but YES! Influenza = segmented virus, each gene on separate bit of RNA, so mix-and-match is *automatically* tried on every co-infection, unlike rarer phenomenon of recombination between (say) SARS-2 variants.
1.7K