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Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 23 Nov 2025 #IDsky #OneHealth🧪

🐔 Two commercial poultry premises (near Swaffham, Norfolk; near Gainsborough, Lincolnshire).

📊 52 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 41
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 7
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 23, 2025 at 10:42 PM

Ed Hill

@edmhill.bsky.social

🦆 High Pathogenicity Avian Influenza – WOAH Sit Rep 76 #IDSky #IDEpi 🧪

🗓️ Covers Oct 2025

📊 Outbreaks reported in Africa, Americas, Asia & Europe: 72 in poultry; 154 in non-poultry birds & mammals.

▶️ Reported total of 3,444,691 poultry birds died or culled

🔗: www.woah.org/app/uploads/...

HPAI key figures for the current seasonal wave (Oct 2025 - Sep 2026) and the two previous waves (Oct 2023 - Sep 2024; Oct 2024 - Sep 2025).

01 Oct 2023 – 30 Sep 2024.
Countries and territories reporting HPAI in poultry: 39
No. of HPAI outbreaks in poultry: 851
Countries and territories reporting HPAI in wild birds: 55
No. of HPAI outbreaks in wild birds: 1076

01 Oct 2024 – 30 Sep 2025
Countries and territories reporting HPAI in poultry: 52
No. of HPAI outbreaks in poultry: 1399
Countries and territories reporting HPAI in wild birds: 54
No. of HPAI outbreaks in wild birds: 1896

01 Oct 2025 – 31 Oct 2025
Countries and territories reporting HPAI in poultry: 23
No. of HPAI outbreaks in poultry: 117
Countries and territories reporting HPAI in wild birds: 24
No. of HPAI outbreaks in wild birds: 147

During October 2025, 72 new outbreaks in poultry were notified by 20
countries and territories (Belgium, Bulgaria, Cambodia, Canada, Denmark, France, Germany, Hungary, Italy, Japan, Korea (Rep. of), Lithuania, Netherlands, Nigeria, Poland, Slovakia, Spain, Sweden, United Kingdom, United States of America).

Number of new outbreaks, associated cases and losses by geographical region (losses include animals dead and killed and disposed of within outbreaks – they do not include culling around outbreaks). It should also be noted that some countries or territories are unable to provide a precise number of cases and leave this field blank in the report.

New Outbreak statistics. Africa: 1; Americas: 21; Asia: 4; Europe 46.

Cases statistics. Africa: 13,425; Americas: 23,477; Asia: 79; Europe: 326,793.

Losses statistics. Africa: 13,425; Americas: 2,567,907; Asia: 354; Europe: 863,005.

During October 2025, 154 new outbreaks in non-poultry were notified by 30
countries and territories (Argentina, Austria, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Hungary, Iceland, Ireland, Israel, Italy, Japan, Latvia, Lithuania, Luxembourg, Netherlands, North Macedonia, Norway, Poland, Portugal, Slovakia, Slovenia, South Africa, Spain, Sweden, United Kingdom, United States of America).

This list corresponds to countries and territories that have notified cases in wild birds, mammals or domestic birds other than poultry. This explains why their numbers are different from those presented in the ‘HPAI key figures for the current seasonal wave and the two previous waves’ table, which does not cover domestic birds other than poultry.

The number of HPAI new outbreaks in non-poultry animals reported through WAHIS by geographical region during October 2025:

Africa: 1 (all in in non-poultry birds).
Americas: 6 (all in in non-poultry birds).
Asia: 2 (all in in non-poultry birds).
Europe: 143 (all in non-poultry birds).

November 22, 2025 at 9:22 PM

Reposted by Ed Hill

Helen Branswell 🇨🇦

@helenbranswell.bsky.social

1. #Flu 🧵: #CDC reports that #influenza activity has been "trending upward slowly" in the US over the past few weeks. This could change markedly after Thanksgiving, with all the cross country travel & intergenerational mingling. Right now only 2 places are reporting moderate activity, LA & PR.

November 21, 2025 at 11:58 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 21 Nov 2025 #IDsky #OneHealth🧪

🐔 Commercial poultry near Claydon, Suffolk.

📊 50 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 39
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 7
🇬🇧 Northern Ireland: 3

🔗: www.gov.uk/government/n...

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 21, 2025 at 11:53 PM

Ed Hill

@edmhill.bsky.social

1/ Seasonal influenza summary from latest @ukhsa.bsky.social surveillance report. #IDSky #EpiSky 🧪

🗓️ Data up to week 46 2025 (10-16 Nov 2025)

📊 Unusually early start to influenza season in England. Influenza activity showing mixed trends. Circulating at low levels.

🔗: www.gov.uk/government/s...

National flu and COVID-19 surveillance report: 20 November 2025 (week 47)

www.gov.uk

November 20, 2025 at 5:01 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 19 Nov 2025 #IDsky #OneHealth🧪

🐔 Commercial poultry near Driffield, East Riding of Yorkshire.

📊 48 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 37
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 7
🇬🇧 Northern Ireland: 3

🔗: www.gov.uk/government/n...

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 19, 2025 at 10:43 PM

Ed Hill

@edmhill.bsky.social

1/ 📰 Fantastic to see the official website for the Global Society for Infectious Disease Dynamics (GSIDD) is now live! #GSIDD #IDsky #EpiSky 🧪

🗺️ GSIDD serves the global community of researchers, practitioners and educators in infectious disease dynamics.

🔗: www.gsidd.org

Global Society for Infectious Disease Dynamics (GSIDD) | infectious disease dynamics

GSIDD serves the global community of researchers, practitioners, and educators in infectious disease dynamics.

gsidd.org

November 19, 2025 at 6:24 PM

Reposted by Ed Hill

Thomas House

@tah-sci.com

I was just internal examiner for a passing PhD viva; it's one of the bits of my job I absolutely love. Someone's put a few years into really achieving at the high end of what humans do, and the viva works to get them to demonstrate mastery of that work over a few hours.

November 18, 2025 at 3:56 PM

Ed Hill

@edmhill.bsky.social

1/ Highly pathogenic avian influenza (HPAI) in Great Britain & Europe - DEFRA outbreak assessment for 11 Nov 2025. #IDsky #IDEpi #OneHealth #H5N1 🧪

🗓️ Report period: 28 Oct - 11 Nov 2025

🔗 to report: assets.publishing.service.gov.uk/media/691b32...

Department for Environment, Food and Rural Affairs

Preliminary Outbreak Assessment #3

High pathogenicity avian influenza (HPAI) in Great Britain and Europe

11 November 2025

Disease report
In our previous outbreak assessment on 28 October 2025 (High pathogenicity avian influenza (HPAI) in Great Britain and Europe: updated outbreak assessment 2) we noted that cases of high pathogenicity avian influenza (HPAI) H5 in wild birds were increasing markedly both in Europe and Great Britain and the wild bird risk level in Great Britain was
increased from high to VERY HIGH. Since then, wild bird case numbers in Great Britain have continued to increase week on week with 133 more cases of HPAI H5 clade 2.3.4.4b events involving “found-dead” wild birds (number based on laboratory testing date). The total in Great Britain since the start of the HPAI season on 1 October 2025 is now 195. Of
these 195, 191 have been confirmed as HPAI H5N1, 2 as HPAI H5N5 (see our previous assessment) and 2 as HPAI H5Nx.

Wild bird cases now extend across most of Great Britain. Most wild bird cases in Great Britian this season have been in resident water birds, particularly mute swans, although in November the number of migrant swan (whooper swan) cases has increased markedly. The wild bird risk level across Great Britain is therefore maintained at VERY HIGH, noting that there are still more wild migratory waterbirds to enter Great Britain in the coming weeks from Europe where HPAI reports have also continue to increase exponentially in the last two weeks.

Since our previous outbreak assessment on 28 October 2025 (High pathogenicity avian influenza (HPAI) in Great Britain and Europe: updated outbreak assessment 2) there have been 24 reports of HPAI H5 clade 2.3.4.4b in domestic poultry in Great Britain with 20 in England and 4 in Wales. These extend across most of England and much of Wales. All 24 reports have been confirmed as HPAI H5N1.

November 18, 2025 at 11:06 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 18 Nov 2025 #IDsky #OneHealth🧪

🐔 Commercial poultry unit near Milford Haven, Wales.

🐔 Backyard poultry flock in Suffolk.

📊 47 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 36
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 7
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 18, 2025 at 11:01 PM

Reposted by Ed Hill

Alexis Robert

@alxsrobert.bsky.social

We're advertising an MRC-LID PhD studentship on modelling measles outbreak risk in teenagers and adults, with me, @amsuffel.bsky.social and @rozeggo.bsky.social
You'll design mathematical models using vaccine data and Electronic Health Records to analyse recent transmission patterns, get in touch!

2026-27 Project (Robert & Eggo & Suffel) - MRC London Intercollegiate Doctoral Training Partnership Studentships

Modelling measles transmission risk in adults SUPERVISORY TEAM Supervisor Dr Alexis Robert at LSHTMFaculty of...

mrc-lid.lshtm.ac.uk

November 17, 2025 at 1:21 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 16 Nov 2025 #IDsky #OneHealth🧪

🐔 Large commercial poultry unit near Thorne, South Yorkshire.

📊 45 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 35
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 6
🇬🇧 Northern Ireland: 3

🔗: www.gov.uk/government/n...

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 16, 2025 at 9:32 PM

Reposted by Ed Hill

Ian M. Mackay, PhD (he/him) 🦠🤧🧬📑🦟🧀

@mackayim.bsky.social

"..the first known human H5N5 infection has captured a good deal of attention, but the `other' flu story we've been following this week has been the rapid spread of a new seasonal H3N2 subcade (K) virus, which emerged in the Southern Hemisphere"

afludiary.blogspot.com/2025/11/cdc-...

CDC FluView, ECDC CDT & Canada Announce Early H3N2 Subclade K Prevalence Numbers

Credit NIAID #18,947 Yesterday's announcement for the first known human H5N5 infection has captured a good deal of attention, but the `ot...

afludiary.blogspot.com

November 15, 2025 at 8:40 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 15 Nov 2025 #IDsky #OneHealth🧪

🐔 Large commercial poultry unit in Norfolk

🐦 2 x small group of captive birds (Norfolk,Devon)

📊 44 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 34
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 6
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 15, 2025 at 10:26 PM

Reposted by Ed Hill

Sam Scarpino

@scarpino.bsky.social

1/ The US CDC has restarted influenza reporting!

The data support what we've seen in the wastewater, Walgreens, & genome sequencing data.

Flu rates are low, but rising (especially in kids).

70% of subtyped viruses were H3 and 50% of those were the "K" variant.

Now is the time to get vaccinated.

Sam Scarpino @scarpino.bsky.social · 13d

1/ A expected, the latest data update from Walgreens shows rising levels of general respiratory infections and also the first signs of influenza activity in the US!

We're also seeing wastewater signals in Georgia rising, in support of what Walgreens is report.

Sam Scarpino @scarpino.bsky.social · 14d

1/ A concerning flu "variant" may be driving an early rise in cases in the UK.

The virus is an H3N2, but has mutations that suggest it may evade some prior immunity.

We're not seeing much activity in the US, but that may be changing.

A 🧵 on what signals I'm watching.

www.bbc.com/news/article...

November 14, 2025 at 5:01 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 14 Nov 2025 #IDsky #OneHealth 🧪

🐦 Small backyard flock of captive birds near Pontyberem, Carmarthenshire, Wales.

📊 41 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 31
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 6
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 15, 2025 at 12:25 AM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 13 Nov 2025 #IDsky #OneHealth 🧪

🐔 Commercial poultry flock in Norfolk

🐦 Small backyard flock of captive birds in Cumbria

📊 40 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 31
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 5
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 13, 2025 at 11:56 PM

Ed Hill

@edmhill.bsky.social

1/ Seasonal influenza summary from latest @ukhsa.bsky.social surveillance report. #IDSky #EpiSky 🧪

🗓️ Based on data up to week 45 2025 (03-09 Nov 2025)

📊 Unusually early start to influenza season in England. Circulation remains high in children & young adults.

Report 🔗: www.gov.uk/government/s...

National flu and COVID-19 surveillance report: 13 November 2025 (week 46)

www.gov.uk

November 13, 2025 at 2:23 PM

Reposted by Ed Hill

Louise H. Moncla

@lhmoncla.bsky.social

Our lab's paper describing the North American H5N1 epizootic is out now in Nature! So thrilled to have this out, and congratulations to @lambod50.bsky.social for all the fantastic work on this: www.nature.com/articles/s41...

Ecology and spread of the North American H5N1 epizootic - Nature

The panzootic of highly pathogenic H5N1 since 2021 was driven by around nine introductions into the Atlantic and Pacific flyways, followed by rapid dissemination through wild migratory birds, primaril...

www.nature.com

November 12, 2025 at 7:33 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 12 Nov 2025 #IDsky #OneHealth 🧪

🐔 Commercial poultry unit in Suffolk.

🐔 Commercial poultry flock near Lanark, Scotland.

📊 38 confirmed HPAI H5N1 cases in poultry & other captive birds from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 29
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 1
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 5
🇬🇧 Northern Ireland: 3

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 12, 2025 at 11:51 PM

Ed Hill

@edmhill.bsky.social

📣 Call for contributions at ECMTB 2026 in Graz 🇦🇹

🗓️ Taking place 13-17 July 2026

❓Planning to attend ECMTB 2026 & interested in speaking at a minisymposium on epidemiological-behavioural modelling? #IDsky #EpiSky 🧪

✍️ Express that interest by signing up here: forms.cloud.microsoft/e/bBjFjRD3Wd

November 12, 2025 at 12:14 AM

Reposted by Ed Hill

UK Health Security Agency

@ukhsa.bsky.social

Flu activity has risen unusually early this season, driven by a new subclade.

On the bright side, our data shows that this year's vaccines offer good protection against the virus - to both children and adults.

Details here: https://bit.ly/47LEXZW

Our analysis shows that the flu vaccines provide good protection, even as a new subclade of flu is on the rise

November 11, 2025 at 3:08 PM

Reposted by Ed Hill

Sam Scarpino

@scarpino.bsky.social

1/ A expected, the latest data update from Walgreens shows rising levels of general respiratory infections and also the first signs of influenza activity in the US!

We're also seeing wastewater signals in Georgia rising, in support of what Walgreens is report.

Sam Scarpino @scarpino.bsky.social · 14d

1/ A concerning flu "variant" may be driving an early rise in cases in the UK.

The virus is an H3N2, but has mutations that suggest it may evade some prior immunity.

We're not seeing much activity in the US, but that may be changing.

A 🧵 on what signals I'm watching.

www.bbc.com/news/article...

New flu virus mutation could see ‘worst season in a decade'

Leading flu experts say they will not be surprised if this year's is the worst flu season for a decade.

www.bbc.com

November 10, 2025 at 6:50 PM

Reposted by Ed Hill

Helen Branswell 🇨🇦

@helenbranswell.bsky.social

As expected, Canada has lost its measles-free status because of the long-running outbreak there. With it goes the #measles elimination status of the entire zone of the Americas, the only division of the #WHO to ever have achieved measles elimination. www.statnews.com/2025/11/10/m...

Canada loses measles elimination status — as does the entire Americas region

Canada has formally lost its measles elimination status, the country’s public health agency announced, triggering the loss of that status throughout all of the Americas.

www.statnews.com

November 10, 2025 at 2:49 PM

Ed Hill

@edmhill.bsky.social

📰 UK HPAI H5N1 reported cases: 09 Nov 2025 #IDsky #OneHealth 🧪

🐔 Commercial poultry at premises near Welshpool, Wales.

📊 36 confirmed HPAI H5N1 cases in poultry & other captive birds in UK from 01 Oct 2025
🏴󠁧󠁢󠁥󠁮󠁧󠁿 England: 28
🏴󠁧󠁢󠁳󠁣󠁴󠁿 Scotland: 0
🏴󠁧󠁢󠁷󠁬󠁳󠁿 Wales: 5
🇬🇧 Northern Ireland: 3

🔗: www.gov.uk/government/n...

Bird flu (avian influenza): latest situation in England

Find out about the latest bird flu situation in England and guidance for bird keepers and the public.

www.gov.uk

November 9, 2025 at 11:32 PM

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