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Animal health and welfare

As is the case for humans, animal health can be threatened by various viruses, bacteria and parasites. ANSES's expertise offers insights into the complex interactions between pathogens, animals and rearing conditions, while supporting the management of health crises. It therefore contributes to prevention and control of the main animal diseases affecting livestock and wildlife, as well as the zoonoses affecting human health. It also works to improve animal welfare while ensuring the safety of the food chain and the sustainability of the different production sectors.

News

Aquaculture : de nouveaux virus chez les bars
26/08/2026

Aquaculture: new viruses affecting sea bass

Suspicious deaths and unusual symptoms at a sea bass farm led ANSES scientists to discover two new viruses. The team conducted a study to gain a...
ANSES awarded a new international mandate on trichinellosis
16/07/2026

ANSES awarded a new international mandate on trichinellosis

On 12 June 2026, the World Organisation for Animal Health (WOAH) designated ANSES’s Laboratory for Animal Health as a Reference Laboratory for...
Study findings highlight the need to more closely monitor Clostridioides difficile in horses
07/07/2026

Study findings highlight the need to more closely monitor Clostridioides difficile in horses

A study carried out jointly by ANSES and INRAE has shown that Clostridioides difficile, a pathogen that affects both humans and animals, is fairly...
Congrès international sur le One Health
03/06/2026

International Congress on One Health

Public :
Following the inaugural edition in 2024, which brought together over 100 participants from 16 countries, the International Congress on One Health...
Antibiotiques chez les animaux : diminuer leur utilisation réduit rapidement et durablement la résistance des bactéries
22/05/2026

Reducing the use of antibiotics in animals leads to a rapid and lasting decrease in bacterial resistance

Preserving the efficacy of antibiotics is essential for both human and animal health. Based on the long-term monitoring of antibiotic use and...

Decryption

24/08/2026

West Nile, a virus transmitted by mosquitoes from birds to mammals

West Nile virus mainly affects birds, horses and humans. Present for several decades in the Mediterranean region, its range is gradually expanding northwards in France.
21/04/2026

Lumpy skin disease: keeping a close eye on this viral disease in cattle

Lumpy skin disease (LSD) is an emerging viral disease that only affects cattle and is mainly transmitted by biting insects. It was previously confined to sub-Saharan Africa but has recently appeared…
professionnels de la prise en charge des ordures ménagères en France. Panorama des activités et focus sur l’étape de tri sélectif
15/04/2026

Swine flu: a challenge for livestock and human health

Swine influenza, or swine flu, is a common viral respiratory disease in pigs. Although it generally only causes mild symptoms in animals, it can lead to major health problems and financial losses if…
08/04/2026

One Health for living beings and ecosystems

The One Health concept offers a holistic view of health. It is based on the idea that there are close links between the health of humans, animals and plants, as well as that of ecosystems. Where does…
08/04/2026

ANSES's work on antimicrobial resistance

The multiplication of micro-organism strains that are resistant to antimicrobials is calling the efficacy of these treatments into question. The issue of antimicrobial resistance presents a major…
08/04/2026

Antimicrobial resistance

Antimicrobial resistance is a major issue for human, animal and plant health. The emergence and spread of bacteria, viruses, parasites and fungi that are resistant to antimicrobials are calling the…
09/12/2025

Avian influenza: the current health risks for animals and humans

Avian influenza is a highly contagious viral infection occurring in wild and domestic birds. Like numerous other countries around the world, France has experienced several major avian influenza crises…
canards colverts au bord de l'eau
21/08/2025

Botulism in animals: a rare disease with serious consequences

Botulism is a serious disease caused by a very powerful toxin produced by bacteria called ‘clostridia’, in particular the bacterium Clostridium botulinum. Although botulism can affect both animals and…
Brucellosis
20/08/2025

Brucellosis

Brucellosis is a disease caused by bacteria of the genus Brucella. Found worldwide, it can affect humans, with symptoms including fever, pain, headache and/or weakness. It also affects most mammalian…
20/08/2025

Zoonoses, when animals contaminate humans

A zoonosis is a disease whose pathogen (bacterium, virus or parasite) can be transmitted from animals to humans, or vice versa. Several ANSES laboratories are developing research on this subject. They…
20/08/2025

Eight questions on animal welfare

The concept of animal welfare is at the crossroads of numerous philosophical, moral, scientific, technological, economic, regulatory and social influences that are sometimes conflicting. The welfare…

04/07/2025

The tiger mosquito

Native to the tropical forests of Southeast Asia, the tiger mosquito (Aedes albopictus) has adapted to many different environments, particularly urban ones, colonising a vast array of containers in…

Publications