Erik Karlsson
@eakarlsson.bsky.social
Emerging/endemic infectious diseases, mostly viruses. Pandemic Prevention. Early Warning. One Health. Science outside-the-box. Views my own. 🦠🧪🔬🐓🦇
Pinned
Erik Karlsson
@eakarlsson.bsky.social
· Jul 11
**JOBS ALERT**
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
The WHO/WOAH/FAO H5 Evolution Working Group just released a major nomenclature update: 12 new H5 clades across 2.3.2.1 and 2.3.4.4, the result of a decade of relentless viral evolution stretching from Asia to Africa, the Americas, and even Antarctica. 🥼🔬🧪🦠🐓😷
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Nomenclature updates to the hemagglutinin gene clade designations resulting from the continued evolution of high pathogenicity avian influenza A(H5) virus clades 2.3.2.1c and 2.3.4.4
The evolutionary divergence of the A(H5) hemagglutinin (HA) gene of high pathogenicity avian influenza (HPAI) viruses (A/goose/Guangdong/96 lineage) was analyzed by phylogenetic and average pairwise d...
www.biorxiv.org
November 26, 2025 at 4:06 PM
The WHO/WOAH/FAO H5 Evolution Working Group just released a major nomenclature update: 12 new H5 clades across 2.3.2.1 and 2.3.4.4, the result of a decade of relentless viral evolution stretching from Asia to Africa, the Americas, and even Antarctica. 🥼🔬🧪🦠🐓😷
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Erik Karlsson
Go @eakarlsson.bsky.social knocking it out of the park at the @virus-metagenomics.bsky.social workshop at CERI in Stellenbosch.
November 19, 2025 at 3:06 PM
Go @eakarlsson.bsky.social knocking it out of the park at the @virus-metagenomics.bsky.social workshop at CERI in Stellenbosch.
Reposted by Erik Karlsson
Tomorrow evening we have our keynote lecture session from 16:00 in the Neelsie Cinema, Stellenbosch University. Dr Maja Vukovikj will be speaking about Africas ancient disease landscape and Dr Erik Karlsson will talk about metagenomics and high-risk interfaces tinyurl.com/ytj3sppm
November 18, 2025 at 11:36 AM
Tomorrow evening we have our keynote lecture session from 16:00 in the Neelsie Cinema, Stellenbosch University. Dr Maja Vukovikj will be speaking about Africas ancient disease landscape and Dr Erik Karlsson will talk about metagenomics and high-risk interfaces tinyurl.com/ytj3sppm
Proud to be part of this new Nature Biotechnology paper, “RNA structure modulates Cas13 activity and enables mismatch detection.” Detecting single-nucleotide mutations in #influenza or SARS-CoV-2 is how you know, fast, when a virus is playing by different rules.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
RNA structure modulates Cas13 activity and enables mismatch detection - Nature Biotechnology
An effective CRISPR RNA occlusion strategy enhances mismatch detection when using Cas13.
www.nature.com
October 25, 2025 at 1:47 AM
Proud to be part of this new Nature Biotechnology paper, “RNA structure modulates Cas13 activity and enables mismatch detection.” Detecting single-nucleotide mutations in #influenza or SARS-CoV-2 is how you know, fast, when a virus is playing by different rules.
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Now out in @nejm.org :
Between 2023–2024: Sixteen human infections with A/H5N1 in Cambodia. Six deaths. Most in children. All exposed to sick or dead poultry.
www.nejm.org/doi/full/10....
Between 2023–2024: Sixteen human infections with A/H5N1 in Cambodia. Six deaths. Most in children. All exposed to sick or dead poultry.
www.nejm.org/doi/full/10....
Resurgence of Zoonotic Highly Pathogenic Avian Influenza A(H5N1) Virus in Cambodia | NEJM
In this report from Cambodia, 16 human cases of highly pathogenic avian influenza
A(H5N1) virus infection that occurred from February 2023 through August 2024 are described.
www.nejm.org
October 23, 2025 at 5:04 AM
Now out in @nejm.org :
Between 2023–2024: Sixteen human infections with A/H5N1 in Cambodia. Six deaths. Most in children. All exposed to sick or dead poultry.
www.nejm.org/doi/full/10....
Between 2023–2024: Sixteen human infections with A/H5N1 in Cambodia. Six deaths. Most in children. All exposed to sick or dead poultry.
www.nejm.org/doi/full/10....
Time’s running out!
We’re hiring 1 Scientist + 2 Postdocs at @PasteurCambodia’s #Virology Unit to work on emerging viruses & #zoonoses.
If you want to do real-time science that matters—this is your chance.
Apply now. Start soon.
🦠🔬🧪🐓💉🦇😷🥼
#academicjobs #OneHealth #Virology
We’re hiring 1 Scientist + 2 Postdocs at @PasteurCambodia’s #Virology Unit to work on emerging viruses & #zoonoses.
If you want to do real-time science that matters—this is your chance.
Apply now. Start soon.
🦠🔬🧪🐓💉🦇😷🥼
#academicjobs #OneHealth #Virology
**JOBS ALERT**
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
August 7, 2025 at 11:24 AM
Time’s running out!
We’re hiring 1 Scientist + 2 Postdocs at @PasteurCambodia’s #Virology Unit to work on emerging viruses & #zoonoses.
If you want to do real-time science that matters—this is your chance.
Apply now. Start soon.
🦠🔬🧪🐓💉🦇😷🥼
#academicjobs #OneHealth #Virology
We’re hiring 1 Scientist + 2 Postdocs at @PasteurCambodia’s #Virology Unit to work on emerging viruses & #zoonoses.
If you want to do real-time science that matters—this is your chance.
Apply now. Start soon.
🦠🔬🧪🐓💉🦇😷🥼
#academicjobs #OneHealth #Virology
Cambodia has confirmed its 15th human case of #H5N1 in 2025. That brings the year’s total to 15 cases and 7 deaths (CFR: 46.6%). Since 2005: 87 cases, 50 deaths (CFR: 57.5%).
🧪🧬🥼🦠🔬😷🐓💉
#AvianInfluenza #Zoonoses #BirdFlu #Spillover
🧪🧬🥼🦠🔬😷🐓💉
#AvianInfluenza #Zoonoses #BirdFlu #Spillover
August 6, 2025 at 1:53 PM
Cambodia has confirmed its 15th human case of #H5N1 in 2025. That brings the year’s total to 15 cases and 7 deaths (CFR: 46.6%). Since 2005: 87 cases, 50 deaths (CFR: 57.5%).
🧪🧬🥼🦠🔬😷🐓💉
#AvianInfluenza #Zoonoses #BirdFlu #Spillover
🧪🧬🥼🦠🔬😷🐓💉
#AvianInfluenza #Zoonoses #BirdFlu #Spillover
Cambodia has confirmed its 14th human case of avian influenza A/H5N1 in 2025 : a 26-year-old man from Siem Reap.
So far in 2025: 14 cases, 7 deaths — a case fatality rate (CFR) of 50%
Since 2005: 86 cases, 50 deaths (CFR: 58.1%)
🧪🧬🥼🦠🔬😷🐓💉
So far in 2025: 14 cases, 7 deaths — a case fatality rate (CFR) of 50%
Since 2005: 86 cases, 50 deaths (CFR: 58.1%)
🧪🧬🥼🦠🔬😷🐓💉
July 29, 2025 at 12:00 PM
Cambodia has confirmed its 14th human case of avian influenza A/H5N1 in 2025 : a 26-year-old man from Siem Reap.
So far in 2025: 14 cases, 7 deaths — a case fatality rate (CFR) of 50%
Since 2005: 86 cases, 50 deaths (CFR: 58.1%)
🧪🧬🥼🦠🔬😷🐓💉
So far in 2025: 14 cases, 7 deaths — a case fatality rate (CFR) of 50%
Since 2005: 86 cases, 50 deaths (CFR: 58.1%)
🧪🧬🥼🦠🔬😷🐓💉
13th human case of #H5N1 in Cambodia this year:
6-year-old boy from Tbong Khmum province, confirmed on July 21. Exposure likely linked to sick and dead poultry. He is currently in intensive care. 🧪🧬🥼🦠🔬😷🐓💉
6-year-old boy from Tbong Khmum province, confirmed on July 21. Exposure likely linked to sick and dead poultry. He is currently in intensive care. 🧪🧬🥼🦠🔬😷🐓💉
July 22, 2025 at 12:27 PM
13th human case of #H5N1 in Cambodia this year:
6-year-old boy from Tbong Khmum province, confirmed on July 21. Exposure likely linked to sick and dead poultry. He is currently in intensive care. 🧪🧬🥼🦠🔬😷🐓💉
6-year-old boy from Tbong Khmum province, confirmed on July 21. Exposure likely linked to sick and dead poultry. He is currently in intensive care. 🧪🧬🥼🦠🔬😷🐓💉
**JOBS ALERT**
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
July 11, 2025 at 12:28 AM
**JOBS ALERT**
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
The Virology Unit at @PasteurCambodia
hiring 1 Scientist and 2 Postdocs to join our fast-moving, field-connected, research-driven team on emerging viruses and zoonoses.
🧪🧬🥼🦠🔬🐓💉🦇😷
Limited time to apply — and we need people to start ASAP.**👇
Reposted by Erik Karlsson
Got a great idea for a metagenomic virus discovery project but not sure what to do next? We are running a 5 day hands on workshop in beautiful Stellenbosch, South Africa with experts from around the world. Applications are open until 31st July. climade.health/2025/06/22/m...
July 5, 2025 at 12:41 PM
Got a great idea for a metagenomic virus discovery project but not sure what to do next? We are running a 5 day hands on workshop in beautiful Stellenbosch, South Africa with experts from around the world. Applications are open until 31st July. climade.health/2025/06/22/m...
12th case of H5N1 in Cambodia in 2025. 5 yo boy from Kampot. Zoonotic spillover continues to occur. Vigilant surveillance and One Health response is critical.
July 3, 2025 at 2:01 PM
12th case of H5N1 in Cambodia in 2025. 5 yo boy from Kampot. Zoonotic spillover continues to occur. Vigilant surveillance and One Health response is critical.
The Virology Unit at IPC is constantly working to make surveillance/Early Warning faster, better, cheaper — from air sampling to portable labs. Happy to have our work featured in this @telegraphnews.bsky.social article by @sneweyy.bsky.social 🦠🧪🐓💉🥼😷
Read more: www.telegraph.co.uk/global-healt...
Read more: www.telegraph.co.uk/global-healt...
From coop to cave: Inside the high-tech hunt for H5N1 and Disease X
The Telegraph joined scientists in Cambodia’s vibrant wet markets and vast bat caves to test revolutionary new disease surveillance tools
www.telegraph.co.uk
July 2, 2025 at 12:51 PM
The Virology Unit at IPC is constantly working to make surveillance/Early Warning faster, better, cheaper — from air sampling to portable labs. Happy to have our work featured in this @telegraphnews.bsky.social article by @sneweyy.bsky.social 🦠🧪🐓💉🥼😷
Read more: www.telegraph.co.uk/global-healt...
Read more: www.telegraph.co.uk/global-healt...
11th case of H5N1 in Cambodia has now been reported. Known exposure to sick poultry. This is the 7th case in June, and the 4th in Siem Reap. Continued vigilance, active surveillance, and a strong One Health response remain critical. #BirdFlu 🦠🔬🧪🐓💉😷🥼
July 1, 2025 at 7:59 AM
11th case of H5N1 in Cambodia has now been reported. Known exposure to sick poultry. This is the 7th case in June, and the 4th in Siem Reap. Continued vigilance, active surveillance, and a strong One Health response remain critical. #BirdFlu 🦠🔬🧪🐓💉😷🥼
Cambodia has confirmed its 9th and 10th human cases of H5N1 bird flu this year. 6 of these cases occurred in June alone. Sadly, 6 people have died in 2025. 🧪🧬🦠🔬🥼😷🐓💉
June 29, 2025 at 10:24 AM
Cambodia has confirmed its 9th and 10th human cases of H5N1 bird flu this year. 6 of these cases occurred in June alone. Sadly, 6 people have died in 2025. 🧪🧬🦠🔬🥼😷🐓💉
A long time coming, but our @nanoporetech.com P2Solo is finally running. Time to dive deeper into the messy unknown, hunt down mysterious pathogens, and maybe even find some shiny new viruses. Let's do this. 🦇🐓🧪🦠🧬🔬 #Nanopore #VirusHunting #Science #OneHealth #Genomics
April 2, 2025 at 11:03 AM
A long time coming, but our @nanoporetech.com P2Solo is finally running. Time to dive deeper into the messy unknown, hunt down mysterious pathogens, and maybe even find some shiny new viruses. Let's do this. 🦇🐓🧪🦠🧬🔬 #Nanopore #VirusHunting #Science #OneHealth #Genomics
I echo @systemsvirology.bsky.social - if anyone needs some support or ways to work, please reach out.
For US🇺🇸 scientists/virologists🦠 - if you want to find better ways for your science and career, please let me know. Let us find better ways. Please do repost/retweet
March 29, 2025 at 9:04 AM
I echo @systemsvirology.bsky.social - if anyone needs some support or ways to work, please reach out.
A virus won’t go from “nothing” to “crisis” overnight—but ignoring it is like smelling smoke and thinking, “Eh, probably just toast.” Spoiler: it’s not toast. Early Warning is everything. Fund and improve systems that keep the kitchen from burning down. 🧪🦇🔬🦠💉😷 #ViroSky #IDSky
Experts: New Bat Coronavirus Being Watched
Expert advocates continued vigilance related to recent announcement of newly discovered coronavirus.
www.medscape.com
March 23, 2025 at 5:47 AM
Yet another reminder that A/H5N1 is everywhere: Cambodia’s MoH just confirmed the country’s 75th case. A young child exposed to sick/dead poultry is critically ill. Staying alert, acting fast, and keeping people informed is how we prevent more spillover. 🧪🐓🦠😷💉 #ViroSky #IDSky
tinyurl.com/mrxw5xew
tinyurl.com/mrxw5xew
March 23, 2025 at 4:59 AM
Yet another reminder that A/H5N1 is everywhere: Cambodia’s MoH just confirmed the country’s 75th case. A young child exposed to sick/dead poultry is critically ill. Staying alert, acting fast, and keeping people informed is how we prevent more spillover. 🧪🐓🦠😷💉 #ViroSky #IDSky
tinyurl.com/mrxw5xew
tinyurl.com/mrxw5xew
Reposted by Erik Karlsson
Scientists, clinicians and public health from across the Pacific are discussing pathogen genomic surveillance at the Institut Pasteur de Novelle Caledonie at the stunning Pacific Community Building in Noumea. Here, @eakarlsson.bsky.social leads a discussion of wet lab technical requirements.
March 18, 2025 at 1:33 AM
Scientists, clinicians and public health from across the Pacific are discussing pathogen genomic surveillance at the Institut Pasteur de Novelle Caledonie at the stunning Pacific Community Building in Noumea. Here, @eakarlsson.bsky.social leads a discussion of wet lab technical requirements.
We must shift our mindset and upgrade how quickly, accurately, and cheaply we can detect pathogens, even before they become outbreaks. The next pandemic isn't hypothetical; it's guaranteed. Time for more bold innovation and real-world action. #ViroSky #IDSky 🥼🦠🔬🧪🧬
How the pandemic changed the world of disease control for worse -- and for better
Five years after the World Health Organization declared a global pandemic, there has been progress — and backsliding in the way the world responds to infectious disease.
www.npr.org
March 18, 2025 at 4:36 AM
Postdoc Opportunity
Got a PhD in disease evolution, or something similarly hardcore? Know your way around phylodynamics? Good. We need you.
If you’re up for real-world research getting hands-on with fieldwork, sequencing, and making sense of viral evolution, apply here: jobs.inrae.fr/en/ot-25456.
Got a PhD in disease evolution, or something similarly hardcore? Know your way around phylodynamics? Good. We need you.
If you’re up for real-world research getting hands-on with fieldwork, sequencing, and making sense of viral evolution, apply here: jobs.inrae.fr/en/ot-25456.
Postdoctoral research project: Phylodynamics of highly pathogenic avian influenza viruses in complex ecosystems H/F
ContextHighly pathogenic avian influenza (HPAI) viruses are rapidly crossing geographical boundaries, threatening poultry, wildlife and potentially evolving into global pandemics1,2. In South-East Asi...
jobs.inrae.fr
March 14, 2025 at 1:43 AM
Postdoc Opportunity
Got a PhD in disease evolution, or something similarly hardcore? Know your way around phylodynamics? Good. We need you.
If you’re up for real-world research getting hands-on with fieldwork, sequencing, and making sense of viral evolution, apply here: jobs.inrae.fr/en/ot-25456.
Got a PhD in disease evolution, or something similarly hardcore? Know your way around phylodynamics? Good. We need you.
If you’re up for real-world research getting hands-on with fieldwork, sequencing, and making sense of viral evolution, apply here: jobs.inrae.fr/en/ot-25456.
The Virology Unit at IPC has 3 positions open in #OneHealth:
*Postdoc – Reconstructing Past Outbreaks
*Postdoc – Environmental Surveillance
*Clinical Manager
These aren’t just jobs. They’re front-row seats to global health in action. Ready?
tinyurl.com/57rvxcau
#ViroSky #IDSky 🦠🔬🧬🥼🧪
*Postdoc – Reconstructing Past Outbreaks
*Postdoc – Environmental Surveillance
*Clinical Manager
These aren’t just jobs. They’re front-row seats to global health in action. Ready?
tinyurl.com/57rvxcau
#ViroSky #IDSky 🦠🔬🧬🥼🧪
Institut Pasteur du Cambodge on LinkedIn: The Institut Pasteur du Cambodge (IPC) is looking for:
-…
The Institut Pasteur du Cambodge (IPC) is looking for:
- 𝐏𝐨𝐬𝐭𝐝𝐨𝐜𝐭𝐨𝐫𝐚𝐥 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡𝐞𝐫 – 𝐒𝐞𝐫𝐨𝐥𝐨𝐠𝐲 𝐚𝐭 𝐭𝐡𝐞 𝐇𝐮𝐦𝐚𝐧-𝐀𝐧𝐢𝐦𝐚𝐥…
tinyurl.com
February 25, 2025 at 2:59 PM
The Virology Unit at IPC has 3 positions open in #OneHealth:
*Postdoc – Reconstructing Past Outbreaks
*Postdoc – Environmental Surveillance
*Clinical Manager
These aren’t just jobs. They’re front-row seats to global health in action. Ready?
tinyurl.com/57rvxcau
#ViroSky #IDSky 🦠🔬🧬🥼🧪
*Postdoc – Reconstructing Past Outbreaks
*Postdoc – Environmental Surveillance
*Clinical Manager
These aren’t just jobs. They’re front-row seats to global health in action. Ready?
tinyurl.com/57rvxcau
#ViroSky #IDSky 🦠🔬🧬🥼🧪
Reposted by Erik Karlsson
Smart surveillance really coming into its own. Air, water, and surface sampling in bird markets w NGS can outperform traditional swab based approaches in detecting in a diversity of viruses, including avian influenza. Amazing work by @E_A_Karlsson + team
👉 www.researchsquare.com/article/rs-5...
👉 www.researchsquare.com/article/rs-5...
February 21, 2025 at 12:19 AM
Smart surveillance really coming into its own. Air, water, and surface sampling in bird markets w NGS can outperform traditional swab based approaches in detecting in a diversity of viruses, including avian influenza. Amazing work by @E_A_Karlsson + team
👉 www.researchsquare.com/article/rs-5...
👉 www.researchsquare.com/article/rs-5...
I know things are rough right now for a lot of people in science, and job hunting isn’t exactly fun—but if you’re a virologist looking for interesting work and want a scenery change, the Virology Unit at Institut Pasteur in Cambodia is hiring. #virosky #idsky
tinyurl.com/y62d6tnw
tinyurl.com/y62d6tnw
Erik Karlsson on LinkedIn: Senior Scientist for the Virology Unit
The job market can feel like a bad dating app—lots of vague promises, unrealistic expectations, and the occasional ghosting. You’re out here swiping through…
www.linkedin.com
February 16, 2025 at 10:52 AM
I know things are rough right now for a lot of people in science, and job hunting isn’t exactly fun—but if you’re a virologist looking for interesting work and want a scenery change, the Virology Unit at Institut Pasteur in Cambodia is hiring. #virosky #idsky
tinyurl.com/y62d6tnw
tinyurl.com/y62d6tnw