| Pre-epidemic period | Epidemic period | Post-epidemic period | ||
---|---|---|---|---|---|
 | Number(%) | PRa (95% CI) | Number(%) | Number(%) | PRa (95% CI) |
CLINICAL SYMPTOMS | |||||
Diarrhea quality | Â | Â | Â | Â | Â |
 Watery | 63/65 (97%) | 1.0 (1.0–1.1) | 1143/1232 (93%) | 34/39 (87%) | 0.94 (0.83–1.1) |
 Rice water | 9/65 (14%) | 0.18 (0.10–0.33) | 942/1208 (78%) | 32/38 (84%) | 1.1 (0.94–1.2) |
 Bloody | 0/63 (0) | 0 | 10/1229 (0.8%) | 0/39 (0) | 0 |
 Mucous | 9/64 (14%) | 10 (4.7–22) | 17/1226 (1.4%) | 5/39 (13%) | 9.3 (3.6–24) |
Vomiting | 60/65 (92%) | 1.1 (0.97–1.1) | 1062/1203 (88%) | 33/38 (87%) | 0.98 (0.87–1.1) |
Dehydration | 61/65 (94%) | 3.0 (2.7–3.4) | 369/1194 (31%) | 33/37 (89%) | 2.9 (2.5–3.3) |
Dyspnea | 3/62 (4.8%) | 1.9 (0.60–6.1) | 30/1181 (2.5%) | 5/36 (14%) | 5.5 (2.3–13) |
Altered consciousness | 9/64 (14%) | 2.3 (1.2–4.4) | 72/1184 (6.1%) | 11/36 (31%) | 5.0 (2.9–8.6) |
Coma | 2/64 (3.1%) | 7.5 (1.5–38) | 5/1195 (0.4%) | 1/35 (2.9%) | 6.8 (0.82–57) |
PRIMARY WATER SOURCE | |||||
 Piped | 13/65 (20%) | 0.97 (0.59–1.6) | 294/1207 (21%) | 2/39 (5.1%) | 0.25 (0.06–0.96) |
 Public tap | 40/65 (62%) | 0.86 (0.70–1.0) | 868/1207 (72%) | 15/39 (39%) | 0.53 (0.36–0.80) |
 River/shallow well/lake | 1/65 (1.5%) | 0.48 (0.07–3.4) | 39/1207 (3.2%) | 21/39 (54%) | 17 (11–25) |
 Other | 11/65 (17%) | 4.0 (2.2–7.3) | 51/1207 (4.2%) | 1/39 (2.6%) | 0.61 (0.08–4.3) |
WATER TREATMENT | |||||
 Drinking treated water | 6/61 (9.8%) | 0.31 (0.14–0.66) | 358/1111 (32%) | 3/35 (12%) | 0.37 (0.13–1.1) |
 If treated, treated with chlorine | 6/6 (100%) | 1.0 (0.89–1.2) | 331/342 (97%) | 2/2 (100%) | 1.0 (0.81–1.3) |
RECENT BEHAVIORAL RISK FACTORS | |||||
 Contact with suspected cholera case | 1/64 (1.6%) | 0.08 (0.01–0.53) | 241/1167 (21%) | 4/39 (10%) | 0.50 (0.19–1.3) |
 Funeral participation | 0 (0) | 0 | 18/1196 (1.5%) | 0/39 (0) | 0 |
 Social gathering participation | 3/64 (4.7%) | 1.0 (0.32–3.1) | 56/1195 (4.7%) | 1/39 (2.6%) | 0.55 (0.08–3.9) |
 Visited market | 6/65 (9.2%) | 0.37 (0.17–0.80) | 294/1185 (25%) | 2/39 (5.1%) | 0.21 (0.05–0.80) |
 Travel | 3/65 (4.6%) | 1.8 (0.57–5.9) | 30/1191 (2.5%) | 5/39 (13%) | 5.1 (2.1–12) |