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Jemma Geoghegan

@jemmageoghegan.bsky.social
746 followers 430 following 22 posts

Professor at University of Otago, NZ; Webster Chair in Virology; Rutherford Discovery Fellow. I like viruses and evolution.

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Jemma Geoghegan @jemmageoghegan.bsky.social · 29/07/2026
www.keystonesymposia.org/conferences/...
keystonesymposia.org
Global Virome in Health and Disease: From Individuals to Ecosystems | Keystone Symposia
Join us at the Keystone Symposia on Global Virome in Health and Disease: From Individuals to Ecosystems, February 2027, in Geneva, with field leaders!
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Jemma Geoghegan @jemmageoghegan.bsky.social · 16/07/2026
theconversation.com/bird-flu-has...
theconversation.com
Bird flu has reached New Zealand – what this means and what comes next
The confirmation of the bird flu virus in a brown skua appears to be a single detection. Ongoing surveillance will be essential to detect any further cases.
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Jemma Geoghegan @jemmageoghegan.bsky.social · 10/07/2026
On the cover 🐧 @josephguhlin.bsky.social @annasanture.bsky.social @peterkdearden.bsky.social
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Peter Dearden @peterkdearden.bsky.social · 12/05/2026
Read about this Genomics Aotearoa funded project to understand and help the rarest penguin in the world theconversation.com/why-the-race...
theconversation.com
Why the race to save these cherished penguins just became more urgent
Researchers found the endangered yellow-eyed penguin is made up of three distinct subspecies, with the mainland lineage at greatest risk.
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Jemma Geoghegan @jemmageoghegan.bsky.social · 12/05/2026
New paper out today with @josephguhlin.bsky.social where we did penguin GWAS to better understand disease risk and found that these penguins represent three deep evolutionary lineages www.nature.com/articles/s41...
nature.com
Population genomics of yellow-eyed penguins uncovers subspecies divergence and candidate genes linked to respiratory distress syndrome - Nature Ecology & Evolution
Whole-genome data from 249 yellow-eyed penguins (hoiho) identify three lineages with high geographical and genomic divergence, and candidate gene variants associated with differential susceptibility t...
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Joseph Guhlin @josephguhlin.bsky.social · 12/05/2026
New paper! 🐧 We sequenced 249 hoiho / yellow-eyed penguins across mainland Aotearoa New Zealand and the sub-Antarctic to understand their history and why a deadly chick disease is hitting the mainland population so hard. #Science #Conservation #Genomics #NZWildlife www.nature.com/articles/s41...
Hohio, yellow-eyed penguin, closeup of head, looking to the side
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Kate Evans @kategevans.bsky.social · 19/12/2025
Photographer Richard Robinson & I spent the spring documenting the toughest time of year for Kaikōura's fur seals. In the last 2 years they've faced starvation and a new virus -- now, as bird flu looms, what will this breeding season hold? nzgeo.com/stories/silent-spring 🧪🦭 @nzgeo.bsky.social
nzgeo.com
Silent Spring
Last year, they were hit with a deadly virus. The year before that, starvation. What will this breeding season bring for the thousands of fur seals hauled up on our coasts?
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Jemma Geoghegan @jemmageoghegan.bsky.social · 10/12/2025
Foraging ecology drives viral community structure in New Zealand's aquatic birds www.biorxiv.org/content/10.6...
biorxiv.org
Foraging ecology drives viral community structure in New Zealand's aquatic birds
Wild migratory birds play a major role in the global spread of viruses, yet the diversity, host range and transmission patterns of viruses harboured by migratory species in Aotearoa/New Zealand remain...
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Walker Bragman @walkerbragman.bsky.social · 31/10/2025
Sad day for the folks who staked their reputations on lab leak conspiracy theories. www.telegraph.co.uk/global-healt...
The Telegraph Headline: New Covid virus found in wild Brazilian bats


Subhed: The discovery of a ‘furin cleavage site’ suggests the mutation which helps the virus adapt to humans is naturally occurring
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Joseph Guhlin @josephguhlin.bsky.social · 28/10/2025
🐧We researched one of the world’s rarest #penguins. The yellow‑eyed penguin (aka hoiho/takaraka) isn’t one homogeneous species after all! www.biorxiv.org/content/10.1... #hoiho #conservation #genomics #birds #nzwildlife #endangered #wildlife #nature
Hoiho - the world’s rarest penguin, fewer than 150 mainland pairs left
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Jemma Geoghegan @jemmageoghegan.bsky.social · 27/10/2025
We did a penguin GWAS! Turns out that yellow-eyed penguins (or hoiho) are actually three very divergent groups, which we are calling subspecies www.biorxiv.org/content/10.1... @josephguhlin.bsky.social @peterkdearden.bsky.social @annasanture.bsky.social @cegrueber.bsky.social
biorxiv.org
Population genomics of yellow-eyed penguins uncovers subspecies divergence and candidate genes linked to respiratory distress syndrome
Yellow-eyed penguins (hoiho/takaraka, Megadyptes antipodes ) are among the world’s rarest penguins and are regarded as a taonga (treasured) species in Aotearoa New Zealand. Since 2019, chicks on the N...
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Jemma Geoghegan @jemmageoghegan.bsky.social · 19/09/2025
Our latest preprint evaluates sampling strategies for the detection of avian influenza virus from the environment @profgemmell.bsky.social @dwinter.bsky.social www.biorxiv.org/content/10.1...
biorxiv.org
Evaluating sampling strategies for the detection of avian influenza viruses in the environment
Highly pathogenic avian influenza (HPAI) viruses threaten humans, livestock and wildlife, highlighting the urgent need for early warning surveillance. Environmental RNA (eRNA) monitoring provides a sa...
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Jemma Geoghegan @jemmageoghegan.bsky.social · 03/09/2025
Our latest preprint on the genomic epidemiology of flu over 10 years in NZ www.researchsquare.com/article/rs-7...
researchsquare.com
A decade of genomic surveillance tracks the disappearance and reintroduction of seasonal influenza virus in Aotearoa New Zealand
Seasonal influenza virus circulation was eliminated in Aotearoa (New Zealand) from 2020 to 2022, following the nation's stringent public health response to the COVID-19 pandemic. Here, we generate nea...
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Otago Microbiology and Immunology @otagomicroimmuno.bsky.social · 08/08/2025
New publication from the Department of Microbiology and Immunology: A Novel Crustavirus as a Candidate Aetiology of Tail Fan Necrosis in New Zealand Red Rock Lobsters, Jasus edwardsii 🔗 doi.org/10.1111/jfd.... #Microbiology #Virology #AquaticHealth #CrustaceanResearch #MarineBiology #Otago
doi.org
A Novel Crustavirus as a Candidate Aetiology of Tail Fan Necrosis in New Zealand Red Rock Lobsters, Jasus edwardsii
Tail fan necrosis (TFN) is a shell disease affecting spiny lobsters' outer integument, with significant implications for the health and commercial viability of red rock lobsters (Jasus edwardsii) in ...
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Gytis Dudas @evogytis.bsky.social · 17/07/2025
This is quite late but our lab has a preprint out about a SARS-CoV-2 situation we had in mink in Lithuania back in 2021. It's a doozy with re-emergence of extinct lineages, a country-wide test of all mink farms in Lithuania & some interesting dynamics in mink. www.medrxiv.org/content/10.1... 1/5🧵
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Jemma Geoghegan @jemmageoghegan.bsky.social · 03/07/2025
We found RHDV2 in gulls! While the virus is likely to be dietary in origin, this suggests that birds may act as mechanical vectors for virus spread. Work by Steph Waller, @dwinter.bsky.social @eddieholmes.bsky.social @mongoosekiwi.bsky.social et al. journals.asm.org/doi/10.1128/...
journals.asm.org
Metatranscriptomic detection of rabbit hemorrhagic disease virus 2 in karoro (southern black-backed gulls) | Journal of Virology
Rabbit hemorrhagic disease virus 2 (RHDV2; species Lagovirus europaeus) is a highly pathogenic lagovirus (Caliciviridae) responsible for a lethal disease in rabbits and hares (1). First identified in ...
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Moritz Kraemer @mugkraemer.bsky.social · 10/06/2025
Phylogenetic insights into the transmission dynamics of arthropod-borne viruses www.nature.com/articles/s41... Great work by Verity Hill and team
nature.com
Phylogenetic insights into the transmission dynamics of arthropod-borne viruses - Nature Reviews Genetics
Arthropod-borne viruses have a substantial impact on global health, with climate change and urbanization exacerbating their emergence. Integrating genomic surveillance and phylogenetic models with eco...
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Michelle Wille @duckswabber.bsky.social · 12/05/2025
Rhys and I found some weird influenza B viruses in fish a few years ago. For 2, the HA's bind a2,3 sialic acid ("bird type receptor"). The Siamese algae eater virus NA has a highly conserved structure and active site. No cross-reactive antibodies in human sera. 👉 biorxiv.org/content/10.1...
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Spyros Lytras @spyroslytras.bsky.social · 10/05/2025
Sooo happy to finally have this one published!! (3 years in the making… 👀) A comprehensive investigation into the recency and geographical origins of both SARS-CoVs that spilled to humans in the past few decades, now in @cp-cell.bsky.social www.cell.com/cell/fulltex...
cell.com
The recency and geographical origins of the bat viruses ancestral to SARS-CoV and SARS-CoV-2
Recombination-aware evolutionary analyses of the entire genomes of SARS-CoV-1-like and SARS-CoV-2-like viruses indicate that SARS-CoV-1 and SARS-CoV-2 descend from bat coronaviruses that circulated as...
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University of Otago - Ōtākou Whakaihu Waka @universityofotago.bsky.social · 07/05/2025
Two Otago academics, Dr Olivia Harrison and Professor Jemma Geoghegan, have been awarded Prime Minister's Science Prizes for their outstanding work on managing viruses and managing anxiety. Ngā mihi nui! 👏 Read more here:
otago.ac.nz
Prime Minister’s prizes awarded to two Otago academics
Work on managing anxiety and managing viruses has resulted in two Otago academics receiving Prime Minister’s Science Prizes.
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Eddie Holmes @eddieholmes.bsky.social · 09/04/2025
Recombination between positive-sense and negative-sense RNA viruses: journals.plos.org/plospathogen...
journals.plos.org
A positive-sense single-stranded RNA virus acquired a negative-sense open reading frame through recombination
Author summary The discovery of brine shrimp virga-like virus 1 (BSVV1) challenges the conventional view that positive- and negative-sense RNA viruses are evolutionarily independent. Through genomic a...
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Gytis Dudas @evogytis.bsky.social · 03/04/2025
We're looking for a PhD student to join us at Vilnius University in Lithuania. We work on RNA virus evolution computationally but we'd like to generate more mosquito RNA virus sequence data. Official ad: www.gmc.vu.lt/en/doctoral-.... Please share & continue reading if interested.
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Ben Longdon @blongdon.bsky.social · 02/04/2025
Just out "Making sense of the virome in light of evolution and ecology" doi.org/10.1098/rspb... from super ⭐ team @meganawallace.bsky.social @duckswabber.bsky.social @jemmageoghegan.bsky.social @ryanmimrie.bsky.social @eddieholmes.bsky.social @xavh.bsky.social in Proc B @royalsocietypublishing.org
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Jemma Geoghegan @jemmageoghegan.bsky.social · 30/03/2025
One for the hepaci fans. We found a cool new hepacivirus (along with some other things) in kiwi with dermatitis meridian.allenpress.com/jwd/article/...
meridian.allenpress.com
A Metagenomic Investigation into Apteryx rowi Dermatosis Identifies Multiple Novel Viruses and a Highly Abundant Nematode
Abstract. Sporadic cases of dermatosis have been reported in wild Ōkārito Rowi (Apteryx rowi), a species of brown kiwi, for over a decade. The disease exhibits distinctive features, including lesions,...
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Marc Daalder @marcdaalder.bsky.social · 25/03/2025
I spent about 30 hours over four weeks reading all 716 pages of the report of the Royal Commission into the Covid-19 response, then wrote two articles detailing its findings and recommendations. With the paywall now lifted on both of those pieces, here's what I found. 🧵
newsroom.co.nz
The next pandemic is coming. NZ isn't ready
Special report: The island nation is less prepared for a pandemic than it was five years ago, even as new threats emerge overseas.
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Jemma Geoghegan @jemmageoghegan.bsky.social · 21/03/2025
Preparing for the next pandemic: insights from Aotearoa New Zealand’s Covid-19 response www.sciencedirect.com/science/arti...
sciencedirect.com
Preparing for the next pandemic: insights from Aotearoa New Zealand’s Covid-19 response
In 2020 Aotearoa New Zealand, like many other countries, faced the coronavirus pandemic armed with an influenza-based pandemic plan. The country adapt…
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Jemma Geoghegan @jemmageoghegan.bsky.social · 18/03/2025
We found a crustavirus that may or may not have something to do with tail fan necrosis in lobsters www.biorxiv.org/content/10.1...
biorxiv.org
A novel crustavirus associated with tail fan necrosis in New Zealand red rock lobsters, Jasus edwardsii
Tail fan necrosis (TFN) is a shell disease affecting spiny lobsters' outer integument, with significant implications for the health and commercial viability of red rock lobsters (Jasus edwardsii) in N...
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Michelle Wille @duckswabber.bsky.social · 06/03/2025
Great walk through of all the knowns and unknowns of the current HPAI outbreak in US dairy cattle with a focus on both the cattle, but also human pandemic risk. 👉 journals.asm.org/doi/10.1128/...
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Dr Edward Hill @edmhill.bsky.social · 04/03/2025
📰 DEFRA avian Influenza update on 04 Mar 2025 #IDSky #IDEpi 🐔 Highly pathogenic avian influenza (HPAI) H5N1 confirmed in a commercial poultry premises near Kington, Herefordshire. 📊 25 cases of HPAI H5N1 in England in 2025 🔗 Avian influenza: latest situation in England 👇
gov.uk
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.
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Hailey Robertson @haileyrobertson.bsky.social · 16/01/2025
Couldn't ask for a better first Bluesky post! Our new paper, "Pathogens and planetary change," is out now in @natrevbiodiv.bsky.social. We discuss the linkages between biodiversity loss + pandemics and how we can address these interconnected crises 🧪😷 Give it a read: www.nature.com/articles/s44...
nature.com
Pathogens and planetary change - Nature Reviews Biodiversity
This Review explores the relationship between emerging infectious diseases and biodiversity loss, and how both are connected to global environmental changes in the Anthropocene.
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Angie Rasmussen @angierasmussen.bsky.social · 13/01/2025
Essential reading from @katherinejwu.com @theatlantic.com. For months, we've passively watched H5N1 tear through animals. A year into the cattle outbreak & it remains out of control. H5N1 is everywhere. If H5N1 causes a pandemic, it will be because we let it. www.theatlantic.com/health/archi...
theatlantic.com
Bird Flu Is a National Embarrassment
America should have more aggressively intervened almost a year ago.
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Eddie Holmes @eddieholmes.bsky.social · 11/01/2025
Lots of new viruses (and other known pathogens) here, especially in carnivores and rodents. Of most interest, a bi-segmented coronavirus sampled from diseased red (lesser) pandas (Ailurus fulgens) and that represents a new genus. Work led my Mang Shi and Shuo Su. www.biorxiv.org/content/10.1...
biorxiv.org
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Kristian G. Andersen @kgandersen.bsky.social · 09/01/2025
Thrilled to be co-leading these efforts with our colleagues at Scripps Research and UCSD.
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Angie Rasmussen @angierasmussen.bsky.social · 27/12/2024
As usual, Helen is first out of the gate with a great explanatory piece on the CDC's updated technical report on the H5N1 case in Louisiana, with quotes from me and @scottehensley.bsky.social. 👇
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Joe Grove @grovearmada.bsky.social · 20/12/2024
🎁 Early Xmas present from your friends at the MRC-University of Glasgow Centre for Virus Research @cvrinfo.bsky.social We're thrilled to unwrap Viro3D - a comprehensive database of virus protein structures: >85,000 predicted structures from 4,400 human & animal viruses! 🦠 viro3d.cvr.gla.ac.uk
viro3d.cvr.gla.ac.uk
Viro3D
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Jemma Geoghegan @jemmageoghegan.bsky.social · 20/12/2024
Our latest preprint investigates viruses in calves associated with an idiopathic ill-thrift syndrome www.biorxiv.org/content/10.1...
biorxiv.org
Oral and faecal viromes of New Zealand calves on pasture with an idiopathic ill-thrift syndrome
Since 2015, an idiopathic ill-thrift syndrome featuring diarrhoea and, in some cases, gastrointestinal ulceration has been reported in weaned New Zealand dairy calves. Similar syndromes have been desc...
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Michael Bazaco @mcbazacophd.bsky.social · 18/12/2024
Fatal Case of Crimean-Congo Hemorrhagic Fever, Portugal, 2024 #IDSky #EpiSky
wwwnc.cdc.gov
Fatal Case of Crimean-Congo Hemorrhagic Fever, Portugal, 2024
Fatal Crimean-Congo Hemorrhagic Fever, Portugal
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Eddie Holmes @eddieholmes.bsky.social · 17/12/2024
Influenza-like viruses in basal chordates. Love it.
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Mary @marypetrone.bsky.social · 17/12/2024
New preprint out now! The history of some RNA virus lineages that infect vertebrates might date back to our invertebrate ancestors. Read more here: biorxiv.org/cgi/content/...
Screen grab of title page from BioRxiv website
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Jemma Geoghegan @jemmageoghegan.bsky.social · 17/12/2024
Diversity and cross-species transmission of viruses in a remote island ecosystem: implications for wildlife conservation. Work led by Rebecca French and @eddieholmes.bsky.social academic.oup.com/ve/advance-a...
academic.oup.com
Diversity and cross-species transmission of viruses in a remote island ecosystem: implications for wildlife conservation
Abstract. The ability of viruses to emerge in new species is influenced by aspects of host biology and ecology, with some taxa harbouring a high diversity
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Royal Society Te Apārangi @royalsocietynz.bsky.social · 16/12/2024
The Royal Society Te Apārangi has sent an open letter to the Prime Minister about the importance of social sciences and humanities, following changes to the Marsden Fund terms that explicitly exclude research areas in the social sciences and humanities: www.royalsociety.org.nz/news/open-le...
royalsociety.org.nz
Open letter on importance of research in the social sciences and humanities
Open letter on importance of research in the social sciences and humanities   Tēnā koe Prime Minister, The role of the Royal Society Te Apārangi, as set out in the Royal Society of New Zealand Act,...
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Birds New Zealand (OSNZ) @birdsnewzealand.bsky.social · 12/12/2024
Registration is now open for #BirdsNZ2025 - our annual national ornithological conference, in Tāmaki Makaurau Auckland 31 May-2 June. Register by Feb 28 to make the most of early bird rates. Some field trips have limited capacity, so get in quick! All details at www.birdsnz.org.nz/nz-bird-conf... 🪶
birdsnz.org.nz
2025 NZ Bird Conference - Birds New Zealand
The 2025 Birds New Zealand Conference and Annual General Meeting will be held in Auckland 31st May to 2nd June during King’s Birthday weekend. All events and meals will be at the Novotel & IBIS Auckla...
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Ceridwen (Crid) Fraser @ceridwenfraser.bsky.social · 11/12/2024
www.rnz.co.nz/news/nationa...
rnz.co.nz
Researchers pen scathing open letter to Minister over Marsden Fund changes
Dozens of Rutherford Discovery Fellows condemned "damaging changes" to the Marsden Fund's terms of reference.
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Paul Gardner @ppgardne.bsky.social · 11/12/2024
I happily signed and edited this letter. The minister has not studied any historical scientific breakthroughs (nor their predictability).
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Pat Savage @patrickesavage.bsky.social · 11/12/2024
I'm proud to be one of the 80 Rutherford Discovery Fellows signing this open letter denouncing the Minister's cuts to humanities, social science, and fundamental science funding and calling for an immediate reversal. News: www.rnz.co.nz/news/nationa... Full letter: docs.google.com/document/d/1...
rnz.co.nz
Researchers pen scathing open letter to Minister over Marsden Fund changes
Dozens of Rutherford Discovery Fellows condemned "damaging changes" to the Marsden Fund's terms of reference.
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Josh Quick @scalene.bsky.social · 20/02/2024
Job alert 🚨 Research fellow in wastewater surveillance at the University of Birmingham working with myself and @pathogenomenick jobs.ac.uk/job/DFY639/r... Please encourage any recent PhD graduates to apply!
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Carl Zimmer @carlzimmer.com · 08/12/2024
Still no conclusions from the ongoing investigation of the mystery outbreak in DRC. But this Deutsche Welle piece has some new details. www.dw.com/en/dr-congo-...
dw.com
Deadly mystery illness has DR Congo on alert – DW – 12/08/2024
An unidentified illness has caused dozens of deaths since October in a remote region of the Democratic Republic of Congo. With no precise diagnosis, officials are scrambling to find out whether it is ...
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Didier Mazel @amazeld.bsky.social · 08/12/2024
We are opening a call for applications 2025 – Creation of new junior research groups at the Institut Pasteur in Paris @pasteur.fr all details on our web site : research.pasteur.fr/en/call/call...
research.pasteur.fr
Call for applications 2025 – Creation of new research groups at the Institut Pasteur | Research - Institut Pasteur
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Jemma Geoghegan @jemmageoghegan.bsky.social · 06/12/2024
What a week 🤦🏼‍♀️ www.science.org/content/arti...
science.org
Amid cuts to basic research, New Zealand scraps all support for social sciences
Scientists shocked as “blue-sky” Marsden Fund has half its budget shifted to research focused on helping economy
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The Ferrari Lab @theferrarilab.bsky.social · 05/12/2024
“What’s alarming to me is that we often realize we have a pandemic after the pandemic has started” from @ciddpsu.bsky.social faculty member Troy Sutton on H5N1
time.com
Bird Flu Is Becoming a Bigger Threat
It's one mutation away from getting more dangerous to humans.
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