Table 4. Clinical severity, type of infection and infecting serotype for dengue cases in the cohort.

	Serotypes
	DENV-1 (44)	DENV-2 (44)	DENV-3 (52)	DENV-4 (56)	Unknown (72)
Primary infections (21)	9	7	4	1	0
DF(+HM)	6(1)	6(1)	1(2)	1	0
DHF I	0	0	0	0	0
DHF II	1	0	1	0	0
Unclassified	1	0	0	0	0
Secondary infections (247)	35	37	48	55	72
DF(+HM)	25(1)	27(2)	26(5)	39(3)	59(5)
DHF I	5	5	10	8	4
DHF II	2	3	7	4	2
DSS	0	0	0	0	1
Unclassified	2	0	0	1	1

DF = dengue fever, HM = hemorrhagic manifestations, DHF = dengue hemorrhagic fever, DSS = dengue shock syndrome