A recent study published in Nature Medicine has identified a new highly pathogenic avian influenza (HPAI) A(H5N1) reassortant, known as genotype D1.1. This strain has shown a rapid expansion across North America during the 2024 migration season.
Health officials are concerned about the implications of this new genotype, particularly regarding its potential impact on poultry populations and the risk of transmission to humans.
The study emphasizes the need for ongoing monitoring and preventive measures to control the spread of this virus and protect both animal and public health.