Table 3. ZIKV infection positivity and percent symptomatic contacts among enrolled households in Managua, Nicaragua, August to October, 2016.

#	House	Pos. Contacts1	Total Contacts	% Positivity	Sympt. Pos. Contacts2	% Sympto-matic3	Incident cases
1	1	1	6	17	1	100
2	14	1	4	25	1	100
3	18	1	4	25	1	100
4	20	1	4	25	0	0
5	31	1	4	25	0	0
6	9	1	3	33	1	100	X
7	16	1	3	33	0	0
8	33	1	3	33	0	0
9	7	1	2	50	0	0
10	17	1	2	50	0	0	X
11	26	1	2	50	0	0
12	11	3	6	50	3	100
13	19	3	6	50	1	33
14	5	2	3	67	1	50
15	12	2	3	67	1	50
16	3	4	6	67	1	25
17	30	6	7	86	2	33	X
18	2	1	1	100	0	0
19	23	1	1	100	1	100
20	32	4	4	100	0	0

¹ ZIKV-positive contacts: laboratory-confirmed by ZIKV RT-PCR and/or IgM ELISA.

²Symptomatic ZIKV-positive contacts: laboratory-confirmed ZIKV RT-PCR- and/or IgM-positive contacts that reported ZIKV-associated symptoms.

³ Percent of symptomatic cases among ZIKV-positive contacts in each household.