Acute respiratory illness is defined as recent onset of at least two of the following: rhinorrhea or nasal congestion, sore throat, cough (with or without fever or feverishness).

急性发烧呼吸道疾病—最近至少有以下两种症状发作：鼻溢或鼻塞，咽喉痛，咳嗽(无论是否伴随发热或发烧)。