Clinical features of mycoplasma pneumonia

The so-called mycoplasma pneumonia is pneumonia caused by Mycoplasma pneumoniae, which is neither bacterial pneumonia nor viral pneumonia. This type of pneumonia is more common in school-age children and can also occur in preschool-age children. The main causative agent of this disease is Mycoplasma pneumoniae, which is a microorganism between bacteria and viruses, which is transmitted by cough droplets and has a certain degree of infectivity. There is an epidemic peak in about 3~4 years, and the epidemic period can be as long as 2~4 months. In normal times, it can also occur scattered throughout the year, and it is relatively more common in winter. Mycoplasma pneumonia generally occurs 2~3 weeks after infection with Mycoplasma pneumoniae.Most of the children have no acute onset, and 1/4~1/2 of the children first have symptoms of upper respiratory tract infection, such as nasal congestion, runny nose, sore throat, accompanied by moderate fever, body temperature is about 39 °C, fever type is uncertain, and most coughs are severe and frequent. The initial cough is dry, and then it turns into a stubborn and severe cough, sometimes manifested as a whooping cough, and in the later stage, it coughs up sticky sputum and occasionally contains blood. Physical examination of the lungs is often unpositive. Chest x-ray showed that the lung was opascular, mostly unilateral, mostly in the lower lobe, showing ground-glass patchy shadows, or patchy shadows scattered in the lobes. Complete blood count: white blood cells may be high or low, and most are normal. Erythrocyte sedimentation rate: Increased. Condensation test: positive. Mycoplasma pneumonia is characterized by inconsistencies between x-ray findings and clinical signs, most of which are severe on x-rays, while pulmonary signs are subtle or even non-positive.