Table 4. Receptor specificity of H6 viruses with TRBC and α2,3-sialidase-treated TRBCs.

Virus	HA titers with untreated 1% TRBC (HAU/50 μL)	HA titersa with sialidase-treated 1% TRBC (HAU/50 μL)	Receptor specificity
EV/JX/24/09	64	Neg	α2,3-SA binding
EV/JX/25/09	32	8	α2,3-SA and α2,6-SA binding
EV/HN/1/09	256	Neg	α2,3-SA binding
EV/HB-JZ/02/10	128	32	α2,3-SA and α2,6-SA binding
EV/HN/2/10	64	Neg	α2,3-SA binding
EV/HN/03/10	64	Neg	α2,3-SA binding
EV/HN/07/10	16	Neg	α2,3-SA binding
EV/JX/15/10	64	64	α2,3-SA and α2,6-SA binding
EV/HN/11/10	32	Neg	α2,3-SA binding
EV/HN/14/10	32	Neg	α2,3-SA binding
EV/GX/02/10	16	Neg	α2,3-SA binding
EV/JX/17/11	32	8	α2,3-SA and α2,6-SA binding
EV/JX/19/11	64	16	α2,3-SA and α2,6-SA binding
EV/HN/18/11	32	Neg	α2,3-SA binding
EV/HN/19/11	32	Neg	α2,3-SA binding
EV/HN/20/11	32	Neg	α2,3-SA binding
RG-A/anhui/1/05b	512	Neg	α2,3-SA binding
A/CA/04/09b	64	64	α2,6-SA binding

^aNeg: no HA titer, negative.

^bThe full names and subtypes of the viruses are described in ‘Materials and Methods' section.