Dr Fabrício Campos
@camposvet.bsky.social
With a degree in Veterinary Medicine from UFPel, a Master's in Microbiology at PPGMAA/UFRGS, and a Ph.D. in Veterinary Science at UFRGS, I am a professor at PPGBIOTEC/UFT and serve as Coordinator at PPGMAA/UFRGS. For more information: www.labinftec.com.br
Post 57 — Are We Learning From the Mistakes of the Past?
After 56 posts tracking the global expansion of H5N1, it is clear that this panzootic is more than a viral phenomenon: it reveals structural weaknesses in modern animal production and biosafety. 1/10
After 56 posts tracking the global expansion of H5N1, it is clear that this panzootic is more than a viral phenomenon: it reveals structural weaknesses in modern animal production and biosafety. 1/10
November 23, 2025 at 7:40 PM
Post 57 — Are We Learning From the Mistakes of the Past?
After 56 posts tracking the global expansion of H5N1, it is clear that this panzootic is more than a viral phenomenon: it reveals structural weaknesses in modern animal production and biosafety. 1/10
After 56 posts tracking the global expansion of H5N1, it is clear that this panzootic is more than a viral phenomenon: it reveals structural weaknesses in modern animal production and biosafety. 1/10
Post 56 — H5N1: what is driving the panzootic in the Northern Hemisphere
Four new studies reveal how clade 2.3.4.4b H5N1 spreads, evolves in new hosts, and which factors increase or reduce outbreak risk across the Northern Hemisphere. 1/13
Four new studies reveal how clade 2.3.4.4b H5N1 spreads, evolves in new hosts, and which factors increase or reduce outbreak risk across the Northern Hemisphere. 1/13
November 20, 2025 at 8:44 PM
Post 56 — H5N1: what is driving the panzootic in the Northern Hemisphere
Four new studies reveal how clade 2.3.4.4b H5N1 spreads, evolves in new hosts, and which factors increase or reduce outbreak risk across the Northern Hemisphere. 1/13
Four new studies reveal how clade 2.3.4.4b H5N1 spreads, evolves in new hosts, and which factors increase or reduce outbreak risk across the Northern Hemisphere. 1/13
New publication in Viruses!
We present one of the most comprehensive analyses of COVID-19 in Tocantins (2020–2025), integrating epidemiology, statistics, and genomic surveillance. 1/4
We present one of the most comprehensive analyses of COVID-19 in Tocantins (2020–2025), integrating epidemiology, statistics, and genomic surveillance. 1/4
November 20, 2025 at 10:53 AM
New publication in Viruses!
We present one of the most comprehensive analyses of COVID-19 in Tocantins (2020–2025), integrating epidemiology, statistics, and genomic surveillance. 1/4
We present one of the most comprehensive analyses of COVID-19 in Tocantins (2020–2025), integrating epidemiology, statistics, and genomic surveillance. 1/4
Post 55 — H5N5: the first human case in the United States
The Washington State Depart of Health confirmed the 1st human case of H5N5 globally. The patient is an older adult with comorbidities, hospitalized since early November. Exposure likely occurred in a backyard flock exposed to wild birds. 1/9
The Washington State Depart of Health confirmed the 1st human case of H5N5 globally. The patient is an older adult with comorbidities, hospitalized since early November. Exposure likely occurred in a backyard flock exposed to wild birds. 1/9
November 17, 2025 at 1:22 PM
Post 55 — H5N5: the first human case in the United States
The Washington State Depart of Health confirmed the 1st human case of H5N5 globally. The patient is an older adult with comorbidities, hospitalized since early November. Exposure likely occurred in a backyard flock exposed to wild birds. 1/9
The Washington State Depart of Health confirmed the 1st human case of H5N5 globally. The patient is an older adult with comorbidities, hospitalized since early November. Exposure likely occurred in a backyard flock exposed to wild birds. 1/9
Post 54 — H5N1: The Panzootic Threatening the Oceans
The trajectory of H5N1 shows the shift from an epidemic restricted to birds to a global panzootic, with effects across the economy, biodiversity, and public health. 1/10
The trajectory of H5N1 shows the shift from an epidemic restricted to birds to a global panzootic, with effects across the economy, biodiversity, and public health. 1/10
November 13, 2025 at 5:11 PM
Post 54 — H5N1: The Panzootic Threatening the Oceans
The trajectory of H5N1 shows the shift from an epidemic restricted to birds to a global panzootic, with effects across the economy, biodiversity, and public health. 1/10
The trajectory of H5N1 shows the shift from an epidemic restricted to birds to a global panzootic, with effects across the economy, biodiversity, and public health. 1/10
Post 53 — H5N1: Genomic Evolution, Zoonotic Risks, and Border Surveillance
The H5N1 virus continues to evolve rapidly, expanding across species, continents, and unexpected routes. Recent studies reveal its global reach — from viral recombination to mammalian infections. 1/9
The H5N1 virus continues to evolve rapidly, expanding across species, continents, and unexpected routes. Recent studies reveal its global reach — from viral recombination to mammalian infections. 1/9
November 10, 2025 at 12:06 PM
Post 53 — H5N1: Genomic Evolution, Zoonotic Risks, and Border Surveillance
The H5N1 virus continues to evolve rapidly, expanding across species, continents, and unexpected routes. Recent studies reveal its global reach — from viral recombination to mammalian infections. 1/9
The H5N1 virus continues to evolve rapidly, expanding across species, continents, and unexpected routes. Recent studies reveal its global reach — from viral recombination to mammalian infections. 1/9
Post 52 — Preparing for the Next Influenza Pandemic
The recent expansion of the H5N1 virus in mammals — including infections in cattle and humans — has reignited global concern over the risk of a new pandemic. 1/10
The recent expansion of the H5N1 virus in mammals — including infections in cattle and humans — has reignited global concern over the risk of a new pandemic. 1/10
November 6, 2025 at 8:24 PM
Post 52 — Preparing for the Next Influenza Pandemic
The recent expansion of the H5N1 virus in mammals — including infections in cattle and humans — has reignited global concern over the risk of a new pandemic. 1/10
The recent expansion of the H5N1 virus in mammals — including infections in cattle and humans — has reignited global concern over the risk of a new pandemic. 1/10
Post 51 — H5N1: New Zoonotic Frontiers
The H5N1 virus keeps expanding across species and continents. Recent studies show how this pathogen, once confined to birds, now crosses ecological borders and adapts to new hosts, challenging global surveillance. 1/10
The H5N1 virus keeps expanding across species and continents. Recent studies show how this pathogen, once confined to birds, now crosses ecological borders and adapts to new hosts, challenging global surveillance. 1/10
November 3, 2025 at 12:10 PM
Post 51 — H5N1: New Zoonotic Frontiers
The H5N1 virus keeps expanding across species and continents. Recent studies show how this pathogen, once confined to birds, now crosses ecological borders and adapts to new hosts, challenging global surveillance. 1/10
The H5N1 virus keeps expanding across species and continents. Recent studies show how this pathogen, once confined to birds, now crosses ecological borders and adapts to new hosts, challenging global surveillance. 1/10
Post 50 — H5N1: The Power of Early Detection and New Antiviral Targets
1/9
1/9
October 30, 2025 at 4:45 PM
Post 50 — H5N1: The Power of Early Detection and New Antiviral Targets
1/9
1/9
Hi everyone! 👋 There are two small errors in Post 49:
(i) The map was generated by AI, and there was a minor glitch — the AI mistakenly swapped South Korea and North Korea (it slipped through the final review, my bad 😅).
(i) The map was generated by AI, and there was a minor glitch — the AI mistakenly swapped South Korea and North Korea (it slipped through the final review, my bad 😅).
October 28, 2025 at 12:46 PM
Hi everyone! 👋 There are two small errors in Post 49:
(i) The map was generated by AI, and there was a minor glitch — the AI mistakenly swapped South Korea and North Korea (it slipped through the final review, my bad 😅).
(i) The map was generated by AI, and there was a minor glitch — the AI mistakenly swapped South Korea and North Korea (it slipped through the final review, my bad 😅).
Post 49 — H5N1: Science, Surveillance, and Vaccines for the New Global Scenario
1/10
1/10
October 27, 2025 at 12:33 PM
Post 49 — H5N1: Science, Surveillance, and Vaccines for the New Global Scenario
1/10
1/10
Post 48 — H5N1: The Return of Avian Influenza in Europe and the US – The New Normal!
Europe begins autumn 2025 with the return of H5N1 across multiple countries. According to the EU Animal Disease Information System, 295 outbreaks have been confirmed in poultry farms across 20 nations. (1/9)
Europe begins autumn 2025 with the return of H5N1 across multiple countries. According to the EU Animal Disease Information System, 295 outbreaks have been confirmed in poultry farms across 20 nations. (1/9)
October 23, 2025 at 1:53 PM
Post 48 — H5N1: The Return of Avian Influenza in Europe and the US – The New Normal!
Europe begins autumn 2025 with the return of H5N1 across multiple countries. According to the EU Animal Disease Information System, 295 outbreaks have been confirmed in poultry farms across 20 nations. (1/9)
Europe begins autumn 2025 with the return of H5N1 across multiple countries. According to the EU Animal Disease Information System, 295 outbreaks have been confirmed in poultry farms across 20 nations. (1/9)
Five Years of COVID-19 in Tocantins (Brazil)
Integrated epidemiology + genomics show vaccination cut hospitalizations & deaths by >90%.
3,900+ genomes reveal 166 lineages, from Gamma/Delta to LP.8.1.4 (2025).
👉 www.preprints.org/manuscript/2...
#COVID19 #Genomics #Brazil #SARSCoV2 #PublicHealth
Integrated epidemiology + genomics show vaccination cut hospitalizations & deaths by >90%.
3,900+ genomes reveal 166 lineages, from Gamma/Delta to LP.8.1.4 (2025).
👉 www.preprints.org/manuscript/2...
#COVID19 #Genomics #Brazil #SARSCoV2 #PublicHealth
October 21, 2025 at 3:59 PM
Five Years of COVID-19 in Tocantins (Brazil)
Integrated epidemiology + genomics show vaccination cut hospitalizations & deaths by >90%.
3,900+ genomes reveal 166 lineages, from Gamma/Delta to LP.8.1.4 (2025).
👉 www.preprints.org/manuscript/2...
#COVID19 #Genomics #Brazil #SARSCoV2 #PublicHealth
Integrated epidemiology + genomics show vaccination cut hospitalizations & deaths by >90%.
3,900+ genomes reveal 166 lineages, from Gamma/Delta to LP.8.1.4 (2025).
👉 www.preprints.org/manuscript/2...
#COVID19 #Genomics #Brazil #SARSCoV2 #PublicHealth
Post 47 — H5N1: Artificial Intelligence and Environmental Surveillance in Real Time
The rise of modeling and machine learning is transforming our understanding of H5N1. (1/11)
The rise of modeling and machine learning is transforming our understanding of H5N1. (1/11)
October 20, 2025 at 4:34 PM
Post 47 — H5N1: Artificial Intelligence and Environmental Surveillance in Real Time
The rise of modeling and machine learning is transforming our understanding of H5N1. (1/11)
The rise of modeling and machine learning is transforming our understanding of H5N1. (1/11)
Post 46 — H5N1: Artificial Intelligence and Field Surveillance
Predicting the next genetic rearrangement of the influenza virus is one of virology’s greatest challenges. H5N1 has already shown that a single gene swap can generate a variant with new biological behavior. (1/9)
Predicting the next genetic rearrangement of the influenza virus is one of virology’s greatest challenges. H5N1 has already shown that a single gene swap can generate a variant with new biological behavior. (1/9)
October 16, 2025 at 6:27 PM
Post 46 — H5N1: Artificial Intelligence and Field Surveillance
Predicting the next genetic rearrangement of the influenza virus is one of virology’s greatest challenges. H5N1 has already shown that a single gene swap can generate a variant with new biological behavior. (1/9)
Predicting the next genetic rearrangement of the influenza virus is one of virology’s greatest challenges. H5N1 has already shown that a single gene swap can generate a variant with new biological behavior. (1/9)
Post 45 — H5N1: Risk Communication and On-Farm Biosafety
The spread of H5N1 to dairy cattle marked a turning point in the panzootic. Clade 2.3.4.4b (genotype B3.13) infected up to 15% of cows on affected U.S. farms, causing fever, mastitis, decreased milk yield, and milk alterations. 1/10
The spread of H5N1 to dairy cattle marked a turning point in the panzootic. Clade 2.3.4.4b (genotype B3.13) infected up to 15% of cows on affected U.S. farms, causing fever, mastitis, decreased milk yield, and milk alterations. 1/10
October 13, 2025 at 12:28 PM
Post 45 — H5N1: Risk Communication and On-Farm Biosafety
The spread of H5N1 to dairy cattle marked a turning point in the panzootic. Clade 2.3.4.4b (genotype B3.13) infected up to 15% of cows on affected U.S. farms, causing fever, mastitis, decreased milk yield, and milk alterations. 1/10
The spread of H5N1 to dairy cattle marked a turning point in the panzootic. Clade 2.3.4.4b (genotype B3.13) infected up to 15% of cows on affected U.S. farms, causing fever, mastitis, decreased milk yield, and milk alterations. 1/10
Post 44 — H5N1: diagnostics, adaptation, and global surveillance
As the H5N1 virus expands its reach among birds and mammals, the gap between viral spread and global detection capacity continues to grow. 1/10
As the H5N1 virus expands its reach among birds and mammals, the gap between viral spread and global detection capacity continues to grow. 1/10
October 9, 2025 at 2:42 PM
Post 44 — H5N1: diagnostics, adaptation, and global surveillance
As the H5N1 virus expands its reach among birds and mammals, the gap between viral spread and global detection capacity continues to grow. 1/10
As the H5N1 virus expands its reach among birds and mammals, the gap between viral spread and global detection capacity continues to grow. 1/10
Post 43 — H5N1: the virus that adapted to the world (and to cities)
Even publishing twice a week, it’s hard to keep up with all the new studies on H5N1 — a clear sign of the severity and speed with which this panzootic is evolving. 1/15
Even publishing twice a week, it’s hard to keep up with all the new studies on H5N1 — a clear sign of the severity and speed with which this panzootic is evolving. 1/15
October 6, 2025 at 1:49 PM
Post 43 — H5N1: the virus that adapted to the world (and to cities)
Even publishing twice a week, it’s hard to keep up with all the new studies on H5N1 — a clear sign of the severity and speed with which this panzootic is evolving. 1/15
Even publishing twice a week, it’s hard to keep up with all the new studies on H5N1 — a clear sign of the severity and speed with which this panzootic is evolving. 1/15
Post 42 — H5N1: when food becomes a hidden risk
Feeding raw diets to pets, with fresh meat or unpasteurized milk, may look “natural.” But it can hide a serious danger: H5N1 avian influenza. Contaminated raw products have already caused fatal cat outbreaks in Europe, Asia, and North America. 1/10
Feeding raw diets to pets, with fresh meat or unpasteurized milk, may look “natural.” But it can hide a serious danger: H5N1 avian influenza. Contaminated raw products have already caused fatal cat outbreaks in Europe, Asia, and North America. 1/10
October 2, 2025 at 1:38 PM
Post 42 — H5N1: when food becomes a hidden risk
Feeding raw diets to pets, with fresh meat or unpasteurized milk, may look “natural.” But it can hide a serious danger: H5N1 avian influenza. Contaminated raw products have already caused fatal cat outbreaks in Europe, Asia, and North America. 1/10
Feeding raw diets to pets, with fresh meat or unpasteurized milk, may look “natural.” But it can hide a serious danger: H5N1 avian influenza. Contaminated raw products have already caused fatal cat outbreaks in Europe, Asia, and North America. 1/10
🚨 New breakthrough against COVID-19
A study led by Prof. Saulo Fernandes (School of Pharmacy/UFRGS), in which I am a co-author, identified a new class of reversible inhibitors of the main protease (Mpro) of SARS-CoV-2 – an essential enzyme for viral replication. (1/3)
A study led by Prof. Saulo Fernandes (School of Pharmacy/UFRGS), in which I am a co-author, identified a new class of reversible inhibitors of the main protease (Mpro) of SARS-CoV-2 – an essential enzyme for viral replication. (1/3)
September 30, 2025 at 1:41 PM
🚨 New breakthrough against COVID-19
A study led by Prof. Saulo Fernandes (School of Pharmacy/UFRGS), in which I am a co-author, identified a new class of reversible inhibitors of the main protease (Mpro) of SARS-CoV-2 – an essential enzyme for viral replication. (1/3)
A study led by Prof. Saulo Fernandes (School of Pharmacy/UFRGS), in which I am a co-author, identified a new class of reversible inhibitors of the main protease (Mpro) of SARS-CoV-2 – an essential enzyme for viral replication. (1/3)
Post 41 — H5N1: when the environment changes the rules of the game.
In Italy (2016–2023), three epidemic waves had distinct dynamics: the first spread locally among poultry in farms, while the most recent was linked to wetlands, water bodies, and gulls. 1/8
In Italy (2016–2023), three epidemic waves had distinct dynamics: the first spread locally among poultry in farms, while the most recent was linked to wetlands, water bodies, and gulls. 1/8
September 29, 2025 at 2:26 PM
Post 41 — H5N1: when the environment changes the rules of the game.
In Italy (2016–2023), three epidemic waves had distinct dynamics: the first spread locally among poultry in farms, while the most recent was linked to wetlands, water bodies, and gulls. 1/8
In Italy (2016–2023), three epidemic waves had distinct dynamics: the first spread locally among poultry in farms, while the most recent was linked to wetlands, water bodies, and gulls. 1/8
Post 40 — H5N1: Tests Under Trial in an International Challenge
We’ve reached the 40th post, discussing the importance, challenges, and shortcomings in the global escalation of the H5N1 panzootic. Latin America remains vulnerable, lacking an integrated lab network. 1/8
We’ve reached the 40th post, discussing the importance, challenges, and shortcomings in the global escalation of the H5N1 panzootic. Latin America remains vulnerable, lacking an integrated lab network. 1/8
September 25, 2025 at 2:24 PM
Post 40 — H5N1: Tests Under Trial in an International Challenge
We’ve reached the 40th post, discussing the importance, challenges, and shortcomings in the global escalation of the H5N1 panzootic. Latin America remains vulnerable, lacking an integrated lab network. 1/8
We’ve reached the 40th post, discussing the importance, challenges, and shortcomings in the global escalation of the H5N1 panzootic. Latin America remains vulnerable, lacking an integrated lab network. 1/8
During a Dengue outbreak in Salinas (MG), our study identified #DENV1 in Aedes aegypti mosquitoes and found high species diversity in houses and urban forest fragments 🌿🦟. Elevated risk of arbovirus spillover!
🔗 Read: memorias.ioc.fiocruz.br/article/1109...
#Dengue #Arboviruses #OneHealth #Aedes
🔗 Read: memorias.ioc.fiocruz.br/article/1109...
#Dengue #Arboviruses #OneHealth #Aedes
September 24, 2025 at 7:54 PM
During a Dengue outbreak in Salinas (MG), our study identified #DENV1 in Aedes aegypti mosquitoes and found high species diversity in houses and urban forest fragments 🌿🦟. Elevated risk of arbovirus spillover!
🔗 Read: memorias.ioc.fiocruz.br/article/1109...
#Dengue #Arboviruses #OneHealth #Aedes
🔗 Read: memorias.ioc.fiocruz.br/article/1109...
#Dengue #Arboviruses #OneHealth #Aedes
Post 39 — H5N1: a global virus in pets, birds, and livestock
H5N1 (clade 2.3.4.4b) has become the most adaptable and dangerous avian influenza virus ever recorded. It crossed borders, reached Antarctica, and broke the species barrier—infecting cattle, cats, dogs, and even sea lions. 1/10
H5N1 (clade 2.3.4.4b) has become the most adaptable and dangerous avian influenza virus ever recorded. It crossed borders, reached Antarctica, and broke the species barrier—infecting cattle, cats, dogs, and even sea lions. 1/10
September 22, 2025 at 4:02 PM
Post 39 — H5N1: a global virus in pets, birds, and livestock
H5N1 (clade 2.3.4.4b) has become the most adaptable and dangerous avian influenza virus ever recorded. It crossed borders, reached Antarctica, and broke the species barrier—infecting cattle, cats, dogs, and even sea lions. 1/10
H5N1 (clade 2.3.4.4b) has become the most adaptable and dangerous avian influenza virus ever recorded. It crossed borders, reached Antarctica, and broke the species barrier—infecting cattle, cats, dogs, and even sea lions. 1/10
🎉 An Important Achievement for Health Research! 🎉 Our project “New Anti-Dengue Therapy: Screening and Validation of Multi-Target Compounds with Artificial Intelligence” has been approved in the PPSUS Call (FAPERGS No. 01/2025). 🚀 1/4
September 18, 2025 at 2:44 PM
🎉 An Important Achievement for Health Research! 🎉 Our project “New Anti-Dengue Therapy: Screening and Validation of Multi-Target Compounds with Artificial Intelligence” has been approved in the PPSUS Call (FAPERGS No. 01/2025). 🚀 1/4