分类：健康-内科-呼吸内科
问题：什么是感冒？感冒是发烧还是咳嗽？或者是喉咙疼？？/有什么标准? 
是发烧还是咳嗽？或者是喉咙疼？？/有什么标准?
回答：以下是美府卫生研究中心（National Institute of Health)的答案：Common coldUpper respiratory infection - viral感冒，上呼吸器官发炎 - 病毒The common cold generally involves a runny nose, nasal congestion, and sneezing. You may also have a sore throat, cough, headache, or other symptoms. Over 200 viruses can cause a cold.感冒通常会有流鼻涕、鼻塞及打喷嚏的现象。也肯能会有喉咙痛、咳嗽、头痛或其他的症状。有超过200种的病毒可以造成感冒。The three most frequent symptoms of a cold are:•Nasal congestion•Runny nose•Sneezing感冒最常见的症状有：鼻塞、流鼻涕、打喷嚏Adults and older children with colds generally have a low fever or no fever. Young children, however, often run a fever around 100-102°F.成年人与较大的孩童的感冒时，可能会有稍微发烧，或根本没有发烧。但是，小的孩童经常会有38度到39度的发烧。