Table 1. Geographical and clinical characteristics of the 181 DENV-1 sera used for E-gene sequence analysis.

Geographical origin							Clinical presentationa
	Society archipelago		Austral archipelago	Tuamotu archipelago	Marquesas archipelago	Gambier archipelago	DF	severe infection (DHF, DSS, death)
	Windward islands (Tahiti, Moorea)	Leeward islands (Bora Bora, Raiatea, Tahaa, Huahine)
2001	Tahiti 19	Bora Bora 6	1	3	-	1	28	12 DHF
n = 49	Moorea 5	Raiatea 11						9 DSS (1 death)
		Tahaa 1
		Huahine 2
2002	Tahiti 26	Bora Bora 1	3	1	2	-	39	3 DHF
n = 43	Moorea 7	Raiatea 2						1 DSS
		Huahine 1
2003	Tahiti 14	-	-	-	-	-	15	-
n = 15	Moorea 1
2004	Tahiti 3	Raiatea 2	-	-	-	-	9	-
n = 9	Moorea 4
2005	Tahiti 6	-	-	-	-	-	15	1 DHF
n = 16	Moorea 10
2006	Tahiti 19	Bora Bora 7	3	1	-	-	46	3 DHF
n = 49	Moorea 8	Raiatea 7
		Tahaa 2
		Huahine 2

^aDF = dengue fever , DHF = dengue hemorrhagic fever , DSS = dengue shock syndrome.