Hello, everyone. Welcome to the lecture series for preventing and controlling of COVID-19. I'm Professor Hong Yan, a vice president of the University. Once again, welcome to these lectures. In this lecture, special you might this program, I tried to give you an introduction of the lectures. As you may have already know, a novel coronavirus named COVID-19 has spread rapidly and has caused a global outbreak of respiratory illness. It initially occurred in earlier December 2019 in Wuhan city, Hubei Province, China. The diseases has spread from sick people to other in close contacts including family member, health workers staff, and the people who're living, studying, traveling together etc. From this map you can see where is Hubei province. Wuhan City is a capital city of Hubei. Hubei is located in the central of the China. From right side, you from registered figure can be seen that red line is still going up, that is a cumulative numbers. But you see the second one, the red line which is confirmed the reported cases is going down. Common signs of COVID-19 include mild to severe respiratory illness with a fever, cough, and shortness of breath. In more severe cases, infections can cause pneumonia, severe acute respiratory syndrome, kidney failure, heart failure, central nervous problems, and even death. So far, the global number of the reported cases of COVID-19 has surpassed 100,000 more, including about 80,000 in China and over 28,000 outside of China, including 100 countries/areas. From the bottom maps, you can see these diseases outbreak in the world wide. In the right side, the figure this show the Chinese the new cases is going down, but the problem is we can find a new case of the number is going up. This really big problems now. This morning, Italy prime minister announced the total lock down of the whole countries to protect the citizen from the new diseases. Among confirmed cases in China, most were aged, 30-79 years old, diagnosed in Hubei 75 percent, and considered mild one is about 80 percent. The sex ratio is half and half in China, and the overall case fatality rate was 2.3 percent. You can see the period of incubation is about 0-40 days. The average one is about 5.2 days. As the first country experiencing the outbreak, China has taken a fast track approach to controlling the situation by intensifying tracing and quarantining the suspected carrier of the virus. Different cities responded differently depending on the whether they had zero cases, sporadic ones, cluster or widespread transmission. Wuhan, the center of the coronavirus outbreak, has been totally locked down to contain in the spread of COVID-19 since the 23rd January, and followed by the cities nearby. Compared to only about 1,000 beds for infectious diseases in the beginning of Wuhan, hospital admission capacity was then rapidly improved by setting up 86 designated hospitals and 16 makeshift hospitals, altogether comprising over 60,000 hospital beds, with a greater number of ventilators in the buildings. You know this is a special machines to improve the patients' breath. The other provinces also sent more than 42,000 medical workers to the Wuhan, include a physician, nursing epidemiologist, researcher scientist. My university also sent more than 300 faculty, including the physician, doctors, nurses, scientists go to the Wuhan. You come people from the first of the affiliated hospitals, from the second affiliated hospitals go to that place. They have done very great job. I'm very happy and proud with my faculty. Now in here, I'll give you a recommendations to prevent yourself from this infections. You have to make the regular hand washing with soaped water or alcohol-based hand rub. Covering mouth and nose when coughing and sneezing. The choice and appropriate to use the mask. Open your door, window to improve the air circulation. In many areas of China, people often have asked to reduce out of the activities, and stay at home in the last few weeks. If you have fever, cough, and difficulty in breath, please go to the hospital, seek medical care earlier, and share your previous travel history with your health provider. To help you to know the more knowledge, more information, to help you know how to protect yourself, please can go to see the website of the WHO. In this lecture series, we invited the 37 physicians professors from the different parts of the university to give you a speech, to talk about the knowledge, skills, prevention, how to diagnose this, how to treatment. You can see someone from the department of biology, epidemiology, diagnosis, medicine and treatment, psychology, prevention, etc. Professor Zhou will tell you about the immunology system, and Professor Ren will be telling you the different three kinds of the coronavirus pneumonia. Professor Zeng, will be telling you the epidemic characteristics and response strategy of the COVID-19. Also, the professors from the featured hospitals to talk about the radiologist feature, how to diagnose this, prevention and control management, and also to give you a lecture about the advanced studies, therapeutic strategy, management, clinical management for the cancer patients during this outbreak. Also we have lecture to show you the stem cell transplantation and the lung transplantation in this outbreak. Also the professors to give you a recommended practice procedure for the infections prevention with patients. Zhang Wang will give you the cause for the challenge and a way to deal with under the break of COVID-19 for the surgical operations. Also, we invited experts to tell you the prevention and treatment for the infections during the pregnancy, and also the clinical characteristics and the type of the coronavirus pneumonia in your children also is a good topic to show you. Finally, people will be telling you how to make the psychology intervention and the adjustment. The professors will also tell you how to eat, how to fight well to make the food balanced. This is very good topic for you. You see from this picture you can see our faculties. Now currently they are working in Wuhan to fight with virus. You can see this is a new harbor of the universities. I believe winter we're gone, spring we are coming, myself and my faculty looking for you and hope to see you in our campus soon. Thank you very much.