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Table 3 Description of exposure to arbovirus in patients with symptoms compatible with Zika infection in Tapachula, Chiapas (Mexico, 2015–2018)

From: Different epidemiological profiles in patients with Zika and dengue infection in Tapachula, Chiapas in Mexico (2016–2018): an observational, prospective cohort study

Exposure1 Zika (n = 37) Dengue (n = 82) Undefined illness episode (n = 307) Household cohort (n = 103)
Sexual relations with anyone who had a rash, fever, or other acute illness in the previous 15 days to symptom initiation 8 (21.6%) 5 (6.1%) 35 (11.4%) 10 (9.7%)
A family member of the participant was diagnosed in the last 15 days with some of the following: Zika 1 (2.7%) 0 (0%) 2 (0.7%) 18 (17.5%)
Dengue 1 (2.7%) 5 (6.1%) 5 (1.6%) 42 (40.8%)
Chikungunya 1 (2.7%) 0 (0%) 1 (0.3%) 10 (9.7%)
A coworker or classmate (for children) of the participant was diagnosed in the last 15 days with some of the following Zika 1 (2.7%) 1 (1.2%) 2 (0.7%) 0 (0.0%)
Dengue 1 (2.7%) 1 (1.2%) 5 (1.6%) 3 (2.9%)
Chikungunya 0 (0%) 1 (1.2%) 4 (1.3%) 1 (3.4%)
A neighbor of the participant was diagnosed in the last 15 days with some of the following: Zika 0 (0%) 2 (2.4%) 3 (1%) 2 (1.9%)
Dengue 1 (2.7%) 16 (19.5%) 12 (3.9%) 8 (7.8%)
Chikungunya 0 (0%) 1 (1.2%) 3 (1%) 3 (2.9%)
Participant’s house is located within 1 km to a standing water source 16 (43.2%) 65 (79.3%) 180 (58.6%) 66 (64.1%)
Participant’s houses do not have screens to keep out the mosquitoes 9 (24.3%) 8 (9.8%) 51 (16.6%) 11 (10.7%)
At participant’s home beds and/or cribs are not covered with mosquito nets 11 (29.7%) 38 (46.3%) 55 (17.9%) 37 (35.9%)
  1. 1Self-reported at baseline