Pneumonia is a common and frequent disease of the respiratory system, which is caused by bacteria, viruses, mycoplasma, chlamydia and other pathogenic microorganisms that cause lung infections. There is an incubation period after infection with the relevant pathogenic bacteria, the incubation period is generally about 3-7 days, of course, there is also a longer incubation period, such as tuberculosis infection, it is generally the incubation period of 4-8 weeks, of course, with each person’s physique is not the same, whether or not there is a basic disease, and so on, and also the characteristics of the patient infected with the pathogenic bacteria have a certain relationship. After the infection should pay attention to timely treatment, can be given anti-inflammatory, cough and phlegm treatment, usually pay attention to more physical exercise, increase body resistance.