感冒有普通感冒与流感之分。普通感冒一般不发高烧，主要症状是鼻塞、打喷嚏、流鼻涕、咽部不适等。流感的特点是起病急、发高烧、浑身肌肉酸痛、头疼，呼吸道症状相对较轻。普通感冒发病是分散的，流感常常是一家几个人或一个单位有多人同时发病，并可能出现区域性、全国性大 Common cold and flu have a cold. Common cold does not usually have a high fever, the main symptoms are stuffy nose, sneezing, runny nose, throat discomfort and so on. Flu is characterized by acute onset, high fever, whole body muscle ache, headache, respiratory symptoms are relatively mild. The incidence of common cold is scattered, the flu is often a few people or a unit of more than one person at the same time, and may appear regional, nationally large