Novel coronaviruses survive in vitro under different conditions and have different survival times. In general, the survival time of novel coronavirus carried by liquid is about 14 days, during which the novel coronavirus is highly infectious. Therefore, it is important to go out with a good mask and do a good job of protection to prevent being infected by the virus droplets in the air. In addition, temperature is also an important factor affecting its survival time. At 56 degrees Celsius for 30 minutes, the novel coronavirus can be completely inactivated. At room temperature (25 degrees Celsius), the novel coronavirus quickly loses infectivity but does not become inactivated.