Table 1. Characteristics of eligible PCR- confirmed influenza cases.

Category	Subcategory	Total cases	Age <2 years	Age 2–5 years	Age >5 years
		(%)	(%)	(%)	(%)
Total N		273	82	96	95
Gender	male	152	47	49	56
		(55.7)	(58.3)	(51.0)	(58.9)
	female	121	35	47	39
		(44.3)	(42.7)	(49.0)	(41.1)
Underlying condition	pulmonary	26	7	7	12
		(9.5)	(8.5)	(7.3)	(12.6)
	cardiac	20	4	7	9
		(7.3)	(4.9)	(7.3)	(9.5)
	endocrine	13	1	4	8
		(4.8)	(1.2)	(4.2)	(8.4)
	hepatorenal	4	1	0	3
		(1.5)	(1.2)	(0)	(3.2)
	neurologic	19	3	6	10
		(7.0)	(3.7)	(6.3)	(10.5)
	immuno- suppression	9	0	2	7
		(3.3)	(0)	(2.1)	(7.4)
	hematologic	2	1	0	1
		(0.7)	(1.2)	(0)	(1.1)
	Prematuritya	33	13	13	7
		(12.1)	(15.9)	(13.5)	(7.4)
Treatment with Oseltamivir	treated	33	16	11	6
		(12.1)	(19.5)	(11.5)	(6.3)
	untreated	240	66	85	89
		(87.9)	(80.5)	(88.5)	(93.7)
Influenza type/ subtype	A(H1N1)pdm09	70	27	23	20
		(25.6)	(32.9)	(24.0)	(21.1)
	A(H3N2)	112	38	47	27
		(41.0)	(46.3)	(49.0)	(28.4)
	B	91	17	26	48
		(33.3)	(20.7)	(27.1)	(50.5)

^a<37 gestation weeks.