Neocoronaviruses can survive for up to 8 days in an environment that is generally at the right temperature and humidity, but their average survival time is only about 4 to 5 hours and is subject to changes in air movement, temperature, humidity, and the surface of objects. Neocoronaviruses are highly contagious and insidious, and survive for a relatively short time after leaving the body. Neo-crown virus is mainly spread by droplets and contact, and has a limited airborne range, often one or two meters in a straight line, before settling quickly on the ground or on objects. Survival time varies depending on air, humidity and temperature conditions. The new coronavirus can survive for about 8 days if the temperature and humidity are right. It can survive for up to 5 days if it is in an environment of about 20 degrees Celsius or if the ambient humidity reaches 40%. In addition to this, the exact survival time is also affected by the surface of the object, if in an aerosol it can survive for 3 hours, while on stainless steel surfaces it can survive for about 3 days. New coronavirus easy to infect the lungs to form pneumonia, fever, cough, fatigue, and gradually appeared dyspnea and other symptoms, some patients may have nasal congestion, runny nose, conjunctivitis, or smell and taste loss, a few patients in the infection can be no obvious clinical symptoms. Its clinical manifestations are diverse and can involve various systems. It is recommended to take good care of the patient in daily life, pay attention to the disinfection of the environment and oneself, wash hands more often and change clothes more frequently. If there is any sign of new coronavirus infection, patients should be notified promptly and go to hospital for proper treatment.