Table 1.
Choi et al. [11] a | Au [16] a | Chan et al. [21] b | |
---|---|---|---|
1988–1992 (n = 397) | 1993–2005 (n = 300) | 2003–2006 (n = 18) c | |
Incubation period (range, median) | 1–30 h (7.5 h) | 0.25–43 h (5.5 h) | 1–7 h |
Gastrointestinal | |||
Nausea | 29 | 40 | 61 |
Vomiting | 22 | 31 | 78 |
Abdominal pain | 47 | 59 | 56 |
Diarrhea | 58 | 74 | 94 |
Neurological | |||
Paresthesia/numbness (4 limbs) | 78 | 79 | 67 |
Paresthesia/numbness (perioral/tongue/face) | 30 | 54 | 50 |
Muscle weakness | 44 | 54 | 50 |
Myalgia | 24 | - e | 22 |
Headache | 19 | 19 | 0 |
Hot/cold reversal | 16 | 19 | 6 |
Dizziness d | - e | 37 | 61 |
Cardiovascular | |||
Bradycardia | 0.3 | - e | 94 |
Hypotension | 0.3 | - e | 94 |
General | |||
Fatigue | 59 | - e | 6 |
Pruritus | 11 | - e | 6 |
Skin rash | 2 | - e | 0 |
a Phone interview; b hospital notes reviews and a questionnaires used to collect data might affect the rates; c Ataxia (n = 3); d Dizziness could be due to bradycardia and hypotension; e Symptoms/signs not listed.