AIV	Avian Influenza Virus
BLAST	Basic Local Alignment Search Tool
FAO	Food and Agriculture Organization
HA	Hemagglutinin
HPAI	Highly Pathogenic Avian Influenza
IAV	Influenza A Virus
LPAI	Low-Pathogenicity Avian Influenza
MEGA	Molecular Evolutionary Genetics Analysis
MENA	Middle East and North Africa
NA	Neuraminidase
NCBI	National Center for Biotechnology Information
NJ	Neighbor-Joining (phylogenetic method)
NNI	Nearest-Neighbor-Interchange
OIE	World Organization for Animal Health
Pi	Parsimony-Informative Sites
WHO	World Health Organization