With the trend towards the concentration of medical treatment in hospitals, rates of in-hospital infection have risen greatly. Lien Te-cheng, an attending physician in the Department of Respiratory Therapy at Taipei's Veterans General Hospital, suggests that it is best if in-patients are discharged as soon as they are 70 % recovered, because somebody just recovering from a major illness is much more vulnerable to any secondary infection which they might contract in hospital.
榮總呼吸治療科主治醫師連德正也建議住院病人，復原到七成最好就出院，否則萬一發生院內二度感染，病毒的攻勢將遠勝先前，對於大病初愈抵抗力本來就弱的病患非常不利。