As the Spring Festival approaches, many people plan to return home to visit relatives or travel for vacation. This is the first Spring Festival after the implementation of "Class B and Class B management" for COVID-19 infection, and the public has a strong desire to travel. According to the preliminary analysis and judgment of the Ministry of Transport, the total passenger flow during the Spring Festival Transport this year is estimated to be about 2.095 billion, an increase of 99.5% over the same period last year. So, how to start this long-awaited journey safely and smoothly? What should I pay attention to on the way? "At present, the domestic COVID-19 infection epidemic is still in different epidemic stages, and personal protection still needs to be done well." Chang Zhaorui, a researcher from the China Center for Disease Control and Prevention, reminded the State Council at a news conference on the joint prevention and control mechanism a few days ago. Chang Zhaorui suggested that travel should be reasonably arranged to avoid visiting relatives in areas with high epidemic, and some people in areas with high epidemic should try to reduce travel. People with fever, dry cough, fatigue, sore throat and other symptoms should avoid taking public transport before eliminating the risk of infection. People who feel that they have a high risk of infection should not travel until the risk is eliminated. Be sure to protect yourself and continue to wear masks on the way. "Before traveling, we must make a scientific plan, make a strategy in advance, understand the epidemic situation of the destination, try to stagger the peak travel, avoid going to the crowd gathering place, and reduce the risk of infection." Chang Zhaorui said that we should prepare enough protective articles such as masks, disinfection paper towels, as well as commonly used drugs such as thermometer, antigen detection kit, antipyretic and analgesic drugs, and also pay attention to climate change, prepare enough warm clothes to prevent catching cold. After arranging the trip, how to protect yourself when taking public transportation such as plane and train? Chang Zhaorui reminded: First, in places with closed environment and dense personnel, such as when waiting for a plane, train, subway, bus and other public transport vehicles, you should wear masks in a standardized manner throughout the whole process; Second, maintain a reasonable social distance in public places and reduce close contact with others; Third, do a good job of personal hygiene, especially pay attention to hand hygiene at all times, avoid contact with public goods, use paper towels to cover when coughing or sneezing, and throw used paper towels into the garbage can in time. If you contact respiratory secretions, wash your hands or disinfect your hands in time. When you are outside or taking public transportation, try to reduce the number of meals, try to eat at the wrong time, and try not to go to places with dense crowds and no air circulation. Don't relax your vigilance immediately when you arrive home after the trip. "After returning home or on the way back, you should pay close attention to the physical health of yourself and your family. If you have symptoms such as fever, dry cough, fatigue, sore throat, etc., you should carry out antigen detection in time or seek medical treatment according to the situation." Chang Zhaorui said that while doing a good job of symptom monitoring at the early stage of returning home, you should try to reduce contact with the elderly at home, especially the family with serious basic diseases, and wear a mask properly when contacting. In addition, with the optimization of the epidemic prevention at borders policy, the number of people returning home for the Spring Festival has gradually increased. "People who have recently entered the country should declare in time if they feel unwell and cooperate with customs personnel to actively carry out sampling. If they feel unwell after entering the country, especially if they have fever, they must carry out nucleic acid detection and antigen detection in time to see a doctor in time." Chen Cao, a researcher at the China Center for Disease Control, reminded. （