So when hong kong people travel aboard , they should take the necessary precautions . when they come back , if there are signs and symptoms of fever infections that do not abate and they are unusual , then they should be alerted 市民到外地旅游要小心，回港后有特别情况例如发烧，觉得没有退烧，或者有肺炎病徵，一定要告知医生曾到外地旅游，让医生有警觉性，懂得如何处理。
Signs and symptoms usually develop within minutes and may include tingling in the mouth , hives , swelling of the lips , face , tongue and throat , wheezing or breathing difficulties , dizziness , abdominal pain , diarrhea , nausea or vomiting 过敏的症状与体征经常在数分钟内产生，常见的症状有口腔麻刺感，荨麻疹，脸、口唇、舌头以及咽喉肿胀，出现哮鸣音或呼吸困难，头晕、腹痛、腹泻、恶心或呕吐。
By the use of molecular , microbiologic , immunologic , and morphologic techniques pathology attempts to explain the whys and wherefores of the signs and symptoms manifested by patients while providing a sound foundation for rational clinical care and therapy 通过利用分子组阵的，微动化生的，免疫趋化的，和表形学的技术手段，病理学着意解释病患者症形症侯与疾病症状的病理条辨与衍化源流过程，使之能够为合理治疗与临床护理提供理性基础。
And , during this period , department of health s health visiting team will visit household contacts to provide them with the necessary medical service to ensure that during the 10 - day confinement . they would be checked on their body temperature and other signs and symptoms to make sure they are well . and , should any of them develop earlier signs and symptoms , we would like to provide treatment , appropriate treatment , to these people 该信件是按照《防止传染病蔓延规例》第十一节所赋予我们的权力，我们会提供一个信息包给他们，在家居?生与及有关家居治理安排会详细解释给他们知道，民政事务署的同事会在当日晚上用电话与他们沟通，是否有其馀方面的事情需要提供协助；而?生署的同事会在明日开始派出一支外展护理队接触这些家属，我们会定期与他们接触，而这些接触是不会预先通知他们的，这样可以发挥监察他们是否留在家中的作用。
