Scientific reports
Highly Pathogenic Avian Influenza Virus A(H5N1) Clade 2.3.4.4b Infection in Free-Ranging Polar Bear, Alaska, USA
By Raphaela Stimmelmayr et al. Source CDC Since its emergence in Europe during October 2020, highly pathogenic avian influenza (HPAI) A(H5N1) clade...