Table 1.
Characteristic | Ill (N = 38) | Not ill (N = 4) |
---|---|---|
Age (years) | ||
Mean (s.d.) | 35·8 (21·5) | 65·0 (7·1) |
Range | 4–75 | 60–70 |
Median | 35 | 65 |
Gender, male (%) | 14 (36·8) | 1 (25·0) |
Race (%) | ||
African American | 30 (78·9) | 4 (100·0) |
White/Caucasian | 2 (5·3) | – |
Ethnicity, not Hispanic (%) | 35 (92·1) | 4 (100·0) |
Incubation period (in hours) | ||
Mean (s.d.) | 10·5 (9·7) | |
Range | 2·5–42·5 | |
Median | 5·8 | |
Symptoms (yes), (%) | ||
Diarrhoea | 38 (100·0) | |
Abdominal pain | 36 (94·7) | |
Nausea | 32 (84·2) | |
Fever | 31 (81·6) | |
Headache | 30 (78·9) | |
Myalgia/muscle aches | 30 (78·9) | |
Chills | 30 (78·9) | |
Vomiting | 29 (76·3) | |
Lethargy | 28 (73·7) | |
Backache | 23 (60·5) | |
Gas | 15 (39·5) | |
Outcome (%) | ||
Visited ER/physician | 38 (100·0) | |
Hospitalised | 30 (78·9) | |
Died | 1 (2·6) |