Table 2. Characteristics of Influenza patient study population.

Patient Groups	Virus strain	Age	Race	Blood sampling Time *
Influenza	Seasonal Flu	37±16.54	Chinese 56.2%	30±16 hours (visit-1)
(n = 26)	(H3N2)		Indian 6.2%	88±40 hours (Vist-2)
	2007–2010		Malay 25.0%	14±6 days (visit-3)
			Others 12.5%
Influenza	H1N1 pdm09	25±9.66	Chinese 53.8%	23±22 hours (visit-1)
(n = 30)	2009–2010		Indian 15.2%	108±40 hours (Visit-2)
			Malay 15.6%	15±3 days (visit-3)
			Others 15.5%

^*Average ± SD time from fever to phlebotomy (visit-1), between visits 1 & 2 (visit-2) and between.

visits 2 & 3 (visit-3).