Influenza A H10N3

An H10N3 virus was isolated in Hong Kong in 1979, and in a live-bird market in Thailand in 2011. However, pathogenicity in mammals due to H10N3 viruses remains largely unclear. H10 subtype influenza viruses have been isolated in various species of waterfowl across worldwide geographic areas for more than 50 years. The viruses remain avian receptor binding, however, some strains are highly pathogenic to chickens, even though they lack multiple basic amino acids at the hemagglutinin cleavage site. H10 viruses occasionally infect humans.

Reference:
Miaomiao Zhang. Characterization of the Pathogenesis of H10N3, H10N7, and H10N8 Subtype Avian Influenza Viruses Circulating in Ducks. Scientific Reports.2016