As a medical staff, two days ago to do a live broadcast on the prevention of new coronavirus pneumonia, the response was good, now the netizens most concerned about the issue is summarized for your reference. 1, what is the new coronavirus? What are its characteristics? Coronavirus is a large class of viruses, currently occupies the second place in the cause of the common cold, second only to the rhinovirus, every year in the winter and spring season epidemic, SARS and MERS are caused by coronavirus infection. The novel coronavirus is a new type of coronavirus that has never been found in humans before. It belongs to the beta genus of novel coronaviruses. It is sensitive to ultraviolet light and heat, and the virus can be effectively inactivated by 56℃ for 30 minutes, ether, 75% ethanol, chlorine-containing disinfectants, peracetic acid and chloroform. 2. How is the new coronavirus pneumonia transmitted? Respiratory droplet and contact transmission are the main ways of transmission. Aerosol and gastrointestinal routes of transmission have yet to be clarified. 3.How can I find out if I have been infected with the novel coronavirus? The most critical aspect of a novel coronavirus infection is to have an epidemiologic history. Epidemiologic history simply means 1) having traveled to an infected area 2) having been in contact with people from an infected area 3) clustering of illnesses and 4) having a history of contact with people infected with the virus. The main clinical features of neococcal pneumonia are 1) respiratory symptoms such as fever, malaise, and dry cough; 2) blood counts that show a normal or decreased total number of leukocytes; and 3) chest CT that suggests imaging features of pneumonia. With epidemiological history of any one and two clinical features or do not have epidemiological history, but with three clinical features are suspected cases of new crown pneumonia. 4. What is the difference between a cold, influenza, and C.pneumonia? Common cold is usually characterized by nasal congestion, runny nose, sore throat and other discomforts, without respiratory distress, and systemic symptoms are not obvious. Influenza is a respiratory disease caused by influenza virus infection, mainly manifested by fever, headache, myalgia, nasal congestion, runny nose, and other general discomfort, and in severe cases, it can also cause pneumonia. New crown pneumonia is characterized by fever, malaise, dry cough symptoms, a few symptoms are atypical, and in severe cases, respiratory distress may occur. It is sometimes difficult to separate the three from the symptoms, and needs to be considered in conjunction with epidemiology. 5.About masks 1) How long do masks need to be replaced? If the mask is contaminated or becomes wet, it should be replaced in time. If it is not contaminated, it is recommended to replace it once every 4-6 hours. 2) Can the mask be sterilized and used repeatedly? High temperature, boiling, disinfectant, ultraviolet light and other methods will affect the protective ability of the mask, but relatively speaking, ultraviolet light (medical) and dry heat disinfection method on the mask protective ability of relatively small, can be appropriate to extend the use of mask time. 6, send and receive express delivery how to protect? Sending and receiving express delivery is relatively safe, but also need protection. It is recommended to wear a mask when receiving the courier, wear gloves if possible, open the courier box outdoors, the box do not take home, go home and immediately wash your hands. 7, antibiotics can prevent new crown pneumonia? Antibiotics are drugs for treating bacterial infections. Croup is caused by viral infections, so there is no need to use antibiotics for prevention and treatment. Abuse of antibiotics can cause bacterial imbalance and lead to disease. 8. Is it useful to wear several layers of masks? Medical masks already have enough protective ability, wearing additional masks can not improve the protective ability, but affect the breathability of the mask. 9.How to strengthen the resistance? Normal people only need to eat a reasonable diet, regular life, do not stay up late, pay attention to rest, appropriate exercise can enhance resistance. 10. Can smoking kill the virus? Smoking cannot kill the virus. Instead, long-term smoking can damage lung function and the respiratory barrier, making it easier for infections to occur.