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Table 1 Percentage of signs and symptom of influenza A (H1N1)v in confirmed cases

From: Intensive care adult patients with severe respiratory failure caused by Influenza A (H1N1)v in Spain

Fever (96%)

Cough (88%)

Myalgia (69%)

Headache (59%)

Sore throat (58%)

Sudden onset of symptoms (46%)

Malaise (30%)

  1. Source: Ministerio de Salud y Política Social [13].