Children susceptible to pneumonia, because the lung tissue is interlinked with the outside world the organs, all the time with the surrounding air to the gas exchange of inhaled oxygen and exhaling carbon dioxide. Then in the air a number of microorganisms such as bacteria, viruses, will be with the breath into our respiratory tract. Of course, there are a number of our body's protective mechanism allows us to disease under normal circumstances is not. However, if the decline in body resistance, balance is broken get sick. Is often an early manifestation of the upper respiratory tract infection that is, "the flu", bronchitis, such as the treatment of inappropriate or weak immune system, the disease will be down the development of a pneumonia.
Medical pneumoniae are classified. Classification method is based on the pathogen type, duration, and pathologic morphology of several areas:
1, pathological classification: The big-leaf is divided into pneumonia, pneumonia, bronchial pneumonia, interstitial pneumonia and bronchiolitis and so on.
2, according to types of pathogens include: bacterial pneumonia, common bacteria Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae and so on. Viral pneumonia, common viruses such as respiratory syncytial virus, influenza virus, parainfluenza virus, adeno virus. There are also fungal pneumonia, mycoplasma pneumonia, chlamydia pneumonia.
3, according to course Category: divided into acute pneumonia, persistent pneumonia and chronic pneumonia, persistent pneumonia in the general course of up to 1 ~ 3 months, more than 3 months, compared with chronic pneumonia.
Characteristics of children with pneumonia have a certain age, usually by the baby vulnerable to bacterial or viral infections caused by bronchial pneumonia, bronchiolitis, while the school-age children because of increased resistance, has limited the ability to have the effect of lesions, so the main risk of lobar pneumonia, mycoplasma pneumonia.