Table 1

Incidence of different symptoms and signs on admission

Symptom/signAll patients (%)Severe patients (%)*
*Ventilated patients.
Dyspnoea143 (68)91 (90)
Abdominal pain143 (68)83 (82)
Dysphagia134 (64)73 (73)
Chest pain109 (52)60 (60)
Faintness96 (46)46 (46)
Giddiness67 (32)32 (32)
Myalgia63 (30)36 (36)
Vomiting33 (16)18 (18)
Ptosis147 (70)83 (82)
Weakness of limbs134 (64)78 (78)
Decreased consciousness134 (64)78 (78)
Weakness of neck flexors126 (60)68 (68)
Blurred vision111 (53)65 (65)
Decreasesed respiration94 (45)77 (77)
Local reaction63 (30)18 (18)