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Avian Influenza: Lakes and Rivers at the Crossroads of Viral Circulation
Avian influenza is primarily monitored in poultry flocks and among wild birds. A thesis defended at Dalhousie University in Canada proposes tracking the circulation of influenza...
Avian Influenza: The Beef Meat Sector Is Not (Yet) Affected
Since 2024, avian influenza has no longer been limited to birds. In the United States, the highly pathogenic H5N1 virus underwent cross-species transmission by infecting dairy c...
Influenza A in Birds: The Reservoir That Never Dies Out
Birds are not merely victims of major avian influenza epizootics. They are the natural reservoir for these influenza viruses and, above all, the primary driver of their evolutio...
Avian Influenza: Dogs and Cats at the Center of a New Zoonotic Front
A report highlights the role of pets in the evolution of influenza A viruses and the risk of a pandemic. For a long time, dogs and cats were spared from the circulation of influ...
H5N1 Avian Influenza in Cattle: A Gradual Adaptation of the Virus to Its Host
A study shows that the H5N1 virus’s ability to replicate in bovine cells depends heavily on its “internal genomics”—the genes that drive replication and evasion of the innate im...
Highly Pathogenic Avian Influenza: Europe on Edge Until the End of Winter
Between mid-September and the end of November, Europe saw a resurgence in cases of highly pathogenic avian influenza (HPAI H5) among both wild birds and poultry. In a joint anal...
Avian Influenza and Swine Flu: Europe Adopts a “Pre-Pandemic” Action Plan
The ECDC has published an operational framework with fourteen scenarios to provide real-time guidance for member states’ responses to the risk of an influenza A (H5N1) pandemic...
H5N1 Avian Influenza and Cats: A Status Report in 2025
A litter of 8 kittens died in the Netherlands . One kitten from a goat farm tested positive for the H5N1 virus; the others died after being adopted into different homes. The inv...
Avian Influenza: An Overview of the H5N1 Virus in North America
After three years of avian influenza outbreaks and the culling of hundreds of millions of poultry, one question keeps coming up: What is the main cause of these epizootics? Rese...
COVID-19: An owner who tests positive significantly increases the likelihood of their dog becoming seropositive
Since 2020, it has been recognized that dogs can become infected through contact with an owner who tests positive for SARS-CoV-2. A study published in *Virus Research* supports...
The Wildlife-Human-Livestock Interface: A Key Tool in the Fight Against Emerging Diseases
For the past two decades, emerging and re-emerging infectious diseases have become a major public health issue. According to the World Health Organization (WHO), nearly 60% of k...
Avian Influenza: The Environment and Biosecurity Affect Virus Transmission in Poultry Farms
Since 2021, the United States has been facing an outbreak of highly pathogenic avian influenza (H5N1 HPAI) on an unprecedented scale. More than 500 cases of direct transmission...
Avian Influenza: An AI-Powered Early Warning System for Laying Hen Farms
As highly pathogenic avian influenza (HPAI) continues to cause economic losses and health crises, an article in *Poultry Science* proposes using artificial intelligence (AI) to...
H5N1 Avian Influenza: The Deaths of Two Cats Reignite the Public Health Debate Over Raw Food
The Los Angeles Department of Public Health issued an alert following the serious illness and death of two cats that had been fed commercial raw cat food. One of the cats was co...
COVID-19: The Alpha variant persists in white-tailed deer long after it has disappeared from humans
A study reveals that the Alpha variant of SARS-CoV-2, which has not been detected in humans for over a year, is still actively circulating among white-tailed deer in Ohio, in th...
Climate variability: an underestimated driver of the risk of vector-borne disease outbreaks
A study published in PNAS demonstrates that internal climate variability—the natural and chaotic fluctuations in climate that are independent of human emissions and various risk...
Influenza A (H6): An Underestimated Avian Influenza Virus That Is Now Causing Concern Among Experts
While global attention is focused on H5N1 avian influenza and its recent outbreaks in cattle herds and among humans, another strain is now drawing the attention of the scientifi...
Foot-and-mouth disease: a highly contagious disease that goes undetected clinically
A study reveals the critical importance of silent transmission of foot-and-mouth disease in cattle. Foot-and-mouth disease is one of the most feared threats to cattle herds and...
African swine fever (ASF): Spread to 51 Countries, Summer Outbreak, and Global Health Emergency
ASF continues to spread worldwide. Between January 2024 and May 2025, 14,918 outbreaks were reported in 51 countries and territories, with 386,089 cases identified and 605,225 a...
Bluetongue: The virus Could Also Pose a Threat to Dogs
Long considered a disease affecting only ruminants, bluetongue (BT) may well be expanding its scope. This is suggested by a scientific journal article published in *Veterinary S...
Avian Influenza: Landscape Changes in East Asia Are Facilitating the Emergence of New Viruses
A study shows that the transformation of wetlands and agricultural areas accelerates the diversification of avian influenza viruses. Rapid landscape changes along the East Asia–...
A rare case of plague transmitted by a cat has alerted U.S. health authorities
A 73-year-old man contracted the plague after caring for his sick cat. This case is notable for its atypical nature: the infection occurred in the middle of winter, a time typic...
H5N1 Avian Influenza: Broadened Viral Tropism, Contaminated Milk, and an Increased Zoonotic Risk
The H5N1 virus, long associated with birds, has reached a new stage in its evolution. By infecting dairy cattle and replicating in the mammary gland, it is altering its viral tr...
United Kingdom: West Nile virus detected for the first time in native mosquitoes
A retrospective study conducted in the United Kingdom reveals the first detection of the West Nile virus (WNV) in local mosquitoes in 2023. Although the health risk remains low,...