Novel pneumonia viruses are mainly spread by droplet transmission. Generally speaking, the novel coronavirus pneumonia virus is transmitted mainly through respiratory droplet transmission and contact transmission, and some droplets can even be transmitted to the conjunctiva of the eye and cause conjunctival lesions, resulting in systemic inflammatory response syndrome. Therefore, the prevention of novel coronavirus infection must first do a good job of air isolation, usually pay attention to wear a mask when going out, pay attention to regular disinfection at home, pay attention to good protective measures. If there are febrile patients at home, they must be strictly isolated and pay attention to avoid cross-infection.