Table 5. Antigenic analysis of H6 viruses by HI.

Virus	Titersa with the indicated antiserum (HA group)
	EV/JX/25/09 (II)	EV/HN/2/10 (II)	DT/C2638/11 (III)	DT/C2029/11 (III)	TW/02/13
Group II
EV/JX/25/09	320	640	<10	40	<10
EV/HN/2/10	320	320	<10	20	<10
EV/JX/24/09	1280	640	<10	80	<10
EV/HN/1/09	640	1280	10	160	<10
EV/HN/03/10	320	320	<10	20	<10
EV/HN/07/10	640	640	<10	160	<10
EV/JX/15/10	320	320	<10	10	<10
EV/HN/11/10	320	320	<10	40	<10
EV/HN/14/10	640	640	<10	20	<10
EV/GX/02/10	320	640	<10	80	<10
EV/JX/17/11	640	640	<10	40	<10
EV/JX/19/11	320	640	<10	40	<10
EV/HN/18/11	320	320	<10	40	<10
EV/HN/19/11	320	320	<10	40	<10
EV/HN/20/11	160	160	<10	10	<10
Group III
DT/C2638/11b	<10	<10	160	320	<10
DT/C2029/11b	<10	<10	40	320	<10
EV/HB-JZ/02/10	<10	<10	320	1280	<10
TW-like
TW/02/13b	10	10	40	40	1280

^aHomologous titers are bold; <10: no inhibition was detected at a serum dilution of 1:10.

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