Table 2.

Types and subtypes of influenza positive cases by vaccination status in hospitalised and community study participants^*

Influenza type	Hospitalised with Severe Acute Respiratory Illness (SARI)		General Practice visit for influenza-like illness (ILI)
	Vaccinated (%)	Unvaccinated (%)	Vaccinated (%)	Unvaccinated (%)
All	67	115	37	354
A(H1N1)	6 (9%)	6 (5.2%)	3 (8.1%)	25 (7.1%)
A(H3N2)	37 (55.2%)	49 (42.6%)	15 (40.5%)	151(42.7%)
All A	53 (79.1%)	71(61.7%)	23 (62.2%)	210 (59.3%)
All B	14 (20.9%)	45 (39.1%)	14 (37.8%)	148 (41.8%)

^*SARI case and 4 ILI cases tested positive for both influenza A and B. Not all cases of influenza A were sub-typed. Sub-types do not add to all influenza A.