P. Bessiere

High pathogenicity avian influenza A (H5N1) clade 2.3.4.4b virus infection in a captive Tibetan black bear (Ursus thibetanus): investigations based on paraffin-embedded tissues, France, 2022

The paper characterizes H5N1 virus infection in a Tibetan black bear using histopathology and sequencing of paraffin-embedded tissues, finding high genetic similarity to a gull strain and evidence of mammalian adaptation.

Host factors drive the within-host competition between highly and low pathogenic H5N8 avian influenza viruses

The paper investigates how host factors influence the competition between low and high pathogenic H5N8 avian influenza viruses, showing differential outcomes in chickens and ducks.

Intranasal type I interferon treatment is beneficial only when administered before clinical signs onset in the SARS-CoV-2 hamster model

This study shows that intranasal type I interferon treatment is effective only when given before clinical signs onset in a SARS-CoV-2 hamster model, not after symptoms appear.

The Intestinal Microbiota Contributes To The Control Of Highly Pathogenic H5N9 Influenza Virus Replication In Ducks

This study shows that the intestinal microbiota in ducks modulates antiviral immune responses, reducing H5N9 influenza virus replication in the intestine but not in other tissues.