China's top coronavirus advisor Zhong Nanshan said, now the problem faced in epidemic prevention and control is imported cases from overseas. The following 28-hour experience of Yao Yao (an assumed name), a Chinese student, returning from Italy to China has been dubbed by internet users as "a case from the textbook".

On March 10th, the plane which Yao Yao took from Italy landed in Shenzhen. Viewed from the air tickets bought by her, her returning trip to China was really winding.

She boarded the plane at 6 am on March 9th of Italy time. She had traveled for nearly 30 hours on the way, which was nearly three times that needed in daily time. From Rome to Abu Dhabi to Beijing and then to Shenzhen, she transferred from flight to flight all the way without daring to eat and drink, or even take off her facial mask until she was sent to the isolation point. When she came off the plane in Shenzhen, she was so hungry that her legs kept shaking. The staff brought food and water to her.

After a series of examinations, she was soon picked to the hotel for isolation. Previously Yao Yao lived alone in Italy. The original intention for her to come back was that she was afraid to live alone abroad. Earlier in Italy, several patients had died before being confirmed as infected by the novel coronavirus (COVID-19).

It’s noteworthy that after the epidemic, Yao Yao had finished self-isolation for 20 days in Italy before she set off for the motherland. Before she came back, she had declared her information via all possible channels. The moment she came off the plane, she reported her information to the airport staff immediately. She summarized her good luck all the way and said that once she decided to come back, she would declare all the required information. Now Yao Yao was isolated in the hotel and her nucleic acid test result was negative. On the night she boarded the plane carrying her back to China, Italy announced "national lockdown". On the afternoon of March 17th, her journey once reached the second spot in the most searched hashtags of Weibo.

Her actions have also won numerous likes from netizens

When will the epidemic end? How should each country strengthen epidemic prevention and control? And should overseas Chinese students come back to China?

Zhang Wenhong, director of the department of infectious diseases with Huashan Hospital Affiliated to Fudan University, said, "Above all, you have to consider two questions. First, how long will the epidemic last? Do you decide not to go back after you return to China? If the epidemic lasts for half a year? Will you give up your study or work? Second, if you choose to stay abroad, what should you do?”

Zhang suggested taking effective personal protection measures, as this disease can really be prevented. Social distancing, washing hands, wearing facial masks, these three measures are all necessary.

钟南山院士都说：目前疫情防控面临的问题是输入病例。接下来这个从意大利回国的留学生瑶瑶（化名），辗转28小时的回国经历，被网友称作“教科书式”！

3月10日，意大利留学生乘坐的飞机降落在深圳。从瑶瑶购买的机票来看，她的回国转机之路颇为曲折。

从意大利时间9日早上6时登上飞机至此，她已经在路上辗转了近30个小时，是平时的近3倍。从罗马到阿布扎比到北京然后深圳，一路途经多地转机一路上不敢吃饭喝水、不敢摘下口罩，直至被送到隔离点才放下心来。从深圳下飞机后已经饿得双腿发软，工作人员为她拿来了吃的和水。

经过一系列检查后，她很快被接回酒店进行隔离。瑶瑶此前在意大利独居，回国的初衷也是因为怕一个人在国外独居，因为此前意大利，已经发现多位死后才确认感染的患者。

值得一提的是，疫情发生后，瑶瑶在意大利已经自我隔离了20天，才返程回国。而且回来前，瑶瑶就把能申报的途径全部都申报了一遍，回国后下飞机也是第一时间向机场工作人员报备。她总结自己这一路的幸运，并表示：一旦决定回国，该申报的一定要申报。目前瑶瑶在酒店集中隔离，核酸检测呈阴性。而就在她登上返程飞机的当晚，意大利宣布“封国”。3月17日下午 ，瑶瑶这段旅程一度冲上了微博热搜榜第二位。

瑶瑶这一系列的举动也引来无数网友点赞

疫情到底何时结束？各国如何加强防控？留学生要不要回国？

复旦大学附属华山医院感染科主任张文宏表示：“不管回不回，你要考虑两个问题，第一疫情要多长时间？回来是不是决定再也不回去了？如果疫情要延缓半年呢？你读书工作都不要了？第二如果不回来待在那里怎么办？”

张文宏建议，要采取有效的个人防护，这个病真的可以防，要采取有效的个人防护，保持社交距离，然后洗手，再加上戴口罩，这三点都采用。

(Executive Editor: Ye Ke, Shen Lu)