TABLE 1.

Demographic information and specimen characteristics by country in a four-country study (n = 1,678)

Parameter	Angola	Yap	Fiji	RMIa
Patient characteristics
Median age in yr (range)	23 (<1–72)	15 (<1–99)	28 (<1–89)	20 (<1–86)
Male sex (%)	54.3	47.5	49	48
Median DPO (range)	3.5 (1–45)	2 (0–44)	NDb	2 (0–27)
Specimen characteristics
Total no. of specimens	46	534	302	796
Dengue diagnostic test results (no. of samples)
rRT-PCR	29	175	105	430
DENV-1	29	0	2	0
DENV-2	0	175	13	0
DENV-3	0	0	89	0
DENV-4	0	0	0	430
Anti-DENV IgM ELISA	14	53	38	53
Anti-DENV IgG ELISA	NDb	NDb	NDb	147
No. of negative samplesc	3	202	154	203

^aRMI, Republic of Marshall Islands.

^bND, not done.

^cThat is, the number of samples determined to be negative by rRT-PCR and anti-DENV IgM ELISA.