If COVID-19 spreads through express delivery, it needs to meet several conditions at the same time: First, the express delivery is polluted by COVID-19 during the collection and transportation process; Second, when the courier was received, COVID-19 on the courier was still alive; Third, the courier contacted the objects polluted by COVID-19.
Therefore, it is suggested that when accepting express delivery, especially when accepting overseas mail or articles, masks and disposable gloves should be worn correctly to reduce direct contact, and the outer packaging of express delivery should be thoroughly disinfected. After treatment, take off gloves and masks in time, and clean and disinfect your hands to avoid touching your mouth, eyes and nose with unclean hands.
It is suggested that the general public should actively vaccinate COVID-19 vaccine, pay attention to personal protection, maintain good hygiene habits, balance nutrition, exercise moderately and avoid overwork. If you have symptoms such as fever and cough, you need to seek medical advice in time.
Express delivery is a long way, and viruses that leave body fluids cannot survive for a long time.
It cannot be copied and infected. The main mode of transmission in novel coronavirus is droplet transmission. The survival time of virus in air with different temperature and humidity is different. The higher the temperature, the harder it is for the virus to survive. It can be inactivated by heating at 56℃ for 30 minutes. The virus quickly loses infectivity at room temperature around 25℃, but it is winter now, so the virus will survive in vitro for a longer time.
Unlike bacteria, viruses usually spread more easily in dry air, but this does not mean that they will survive in dry air for a long time. In humid air, viruses are more likely to land on the ground and on the ground. In dry air, they are more likely to float in the air, so viruses are more likely to survive in humid air. At present, influenza A virus (H 1N 1) can survive in the air for 2 hours, which is the longest known virus in the current research, and the survival time of coronavirus is similar to that of influenza virus.