Table 1.

Salivary SLe^x phenotypes and saliva-binding results to the H7 HA1 protein of H7N9-infected patients and uninfected control groups

Groups of saliva samples	Total	Infected patientsa	Uninfected controls
			Co-exposure Gb	Close contact (M)c
(N)	92	32	14	46
Age group	Adults	Adults	Adults	Adults
Health/symptoms	/	Flu disease	Healthy	Healthy
H7 HA1 binders (%)	27 (29)	13 (41)	2 (14)	12 (26)
SLex positive (%)	46 (50)	19 (59)	8 (57)	19 (41)

^aThese were confirmed flu patients infected by H7N9 influenza viruses

^bThese were uninfected control individuals who had similar avian exposure as that of the patients

^cThese were uninfected control individuals who had close contact with the patients