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Table 2 Case definition of acute respiratory illness used in the ResPECT study

From: The Respiratory Protection Effectiveness Clinical Trial (ResPECT): a cluster-randomized comparison of respirator and medical mask effectiveness against respiratory infections in healthcare personnel

Signs  
Fever (T > 37.8 °C)  
Tachypnea (Respiratory Rate ≥ 25)  
Coryza  
Lymphadenopathy  
Symptoms  
Vomiting/Nausea  
Diarrhea  
Cough  
Sputum production  
Fatigue  
Malaise  
Headache  
Sore throat  
Dyspnea  
Chills  
Sweats  
Arthralgias/Myalgias/Body Aches  
Other gastrointestinal symptoms  
  1. *Acute respiratory illness (ARI) is defined as: The presence of one sign(s) OR two symptom(s), as listed. Reported signs or symptoms must represent a change from baseline