At hospital admission, some patients have had sputum production, and the most severely ill patients with H5N1 virus infection have had respiratory distress, tachypnea, rales on auscultation, and evidence of pneumonia [
At hospital admission, some patients have had sputum production, and the most severely ill patients with H5N1 virus infection have had respiratory distress, tachypnea, rales on auscultation, and evidence of pneumonia [