Novel coronavirus may be present on the ground, and human exposure to infection can lead to novel coronavirus pneumonia. Since novel coronavirus has been detected in the feces of people infected with novel coronavirus, there is a risk of contamination of the floor due to the possibility of contamination with novel coronavirus in wastewater and sewerage. Therefore, people who work in environments with unclean floors and sewage need to pay attention to shoe cleaning and disinfection, and wash their hands more often to prevent infection. The main way of transmission of novel coronavirus is through respiratory droplets. In addition, touching contaminated clothing, environment, and object surfaces by hand, and touching the mouth and nose after not paying attention to hand washing may lead to novel coronavirus infection. Therefore, if a patient does not clean and disinfect in time after touching a contaminated surface and then touches his or her mouth and nose, he or she may be infected and develop novel coronavirus pneumonia. If diagnosed, the patient needs to be isolated immediately, closely monitored for vital signs, and treated with symptomatic support depending on the degree of respiratory distress and the progression of chest imaging. If the patient progresses to a critical level, he or she needs to be admitted to the ICU as soon as possible.