Bacterial infections are contagious and can be spread through the air in the form of droplets from a patient with a bacterial infection, such as sneezing, or coughing. It can also be spread by contaminated hands or by contact with utensils. When the body’s immune function is low, or the defense function is weakened, it can be infected with bacteria and cause disease, so it is somewhat infectious. It is important to actively prevent and control the disease. In life and work, we should pay attention to keeping indoor and outdoor air circulation, pay attention to hand hygiene, pay attention to the use of disposable products, and strengthen physical exercise, enhance physical fitness and improve nutrition to increase resistance to the disease.