Background Aim and Objectives Coordinating Center Study Design Case Definition of Eligible Patients Sampling and Data Collection Presence or absence of fever because of infection Cough (and if coughing is productive) Sore throat Shortness of breath or wheezing Measured temperature (ear or tympanic preferred) ≥38 °C for fever Peripheral oxygen saturation Pulse rate >90 beats per minute for tachycardia Respiratory rate >20 breaths per minute for tachypnea Data Sources Sample Size Calculation...