. 2009 Nov 10;3(11):e545. doi: 10.1371/journal.pntd.0000545

Table 1. Serological surveys, July-November 2007 and February-April 2008 in three areas, Rio de Janeiro, Brazil.

Area (type)		Serum sample (IgM) - Surveys			Serum sample (IgG) - Surveys
		1^st	2nd	Seroconversion paired sample (IgM)	1st	2nd	Seroconversion paired sample (IgG)
Higienópolis (Urban)	n	43	29	28	43	29	28
	Positives	1*	4**	2	37	27	1
	Median Age (range)	28.5 (4–79)	42 (4–79)	40.50 (4–79)	28.5 (4–79)	42 (4–79)	40.50 (4–79)
Tubiacanga (Suburban)	n	157	122	117	157	122	117
	positives	2⁺	5⁺⁺	4	90	75	4
	Median Age (range)	11 (4–74)	12 (4–74)	12 (4–74)	11 (4–74)	12 (4–74)	12 (4–74)
Palmares (Suburban slum)	n	126	107	102	126	107	102
	positives	6^†	15^††	11	72	73	8
	Median Age (range)	11 (1–52)	11 (1–52)	10 (1–52)	11 (1–52)	11 (1–52)	10 (1–52)
Total	positives/total	9/326	24/258	17/247	199/326	175/258	13/247

Number of asymptomatic individuals: *1; **2; ⁺ 2; ^{+ +} 4; ^† 4; ^†† 10.