TY - RPRT TI - Regional transmission and reassortment of 2.3.4.4b highly pathogenic avian influenza (HPAI) viruses in Bulgarian poultry 2017/18 AU - Venkatesh, D. AU - Brouwer, A. AU - Goujgoulova, G. AU - Seekings, J. AU - Ellis, R. AU - Brown, I. H. AU - Lewis, N. S. PY - 2020 DO - 10.1101/2020.04.14.040592 UR - https://www.biorxiv.org/content/10.1101/2020.04.14.040592v1 ID - 10.1101/2020.04.14.040592 ER -