Novel emerging reassortant H6 avian influenza viruses with internal genes from G57 genotype of H9N2 pose potential zoonotic risk
ABSTRACT In recent decades, multiple novel reassortant avian influenza viruses (AIVs) carrying internal genes derived from H9N2 viruses have emerged in poultry in China and have repeatedly caused human infections, highlighting the pivotal role of the H9N2 internal genes cassette in facilitating cross-species transmissi...