1.What is Mycoplasma pneumoniae and how does he make children get sick? Mycoplasma is a tiny microorganism smaller than bacteria, but larger than a virus; it invades the body and lives mainly in the cells. Of the 16 species of mycoplasma isolated from the human body, 5 are pathogenic to humans, and mycoplasma pneumoniae is the “culprit” that causes disease in babies. When a patient sneezes, coughs, or comes into close contact with a patient. Mycoplasma pneumoniae will spread with droplets and enter the infected baby’s respiratory tract, causing a respiratory infection in the child. 2. Which children are susceptible to Mycoplasma pneumoniae and how to prevent it? From the transmission of Mycoplasma pneumoniae, we can know that Mycoplasma pneumoniae is mainly transmitted by droplets, so if there are people with Mycoplasma infection at home, or if children go to school, participate in group life, and there are patients with Mycoplasma infection in the group, they may be infected. The majority of children are around 3 years old. The way to prevent it is to wear a mask to prevent transmission if there are coughing people in the family, and pay attention to hand washing, because many droplet-borne diseases are transmitted to each other through the hands of children. 3. What are the symptoms of Mycoplasma pneumoniae infection and how is it diagnosed? Most Mycoplasma pneumoniae infections manifest as pharyngitis, rhinitis, bronchitis and capillary bronchitis. The cough is initially dry and then turns into a stubborn, violent cough without sputum or with a small amount of mucous sputum, especially at night when the cough is more pronounced, and in infants and young children it manifests as wheezing and breathing difficulties. With timely treatment, it rarely turns into pneumonia. Children of different ages behave differently. The younger the child, the less fever there is and the cough may only appear, but children under 1 year old may wheeze more if infected. Older children may have a high fever that lasts for many days. If a child over 4 years old has an unexplained high fever and conventional treatment of the infection does not work, mycoplasma infection must be considered. Mycoplasma infections are generally treated in an exclusionary way, because from the spectrum of childhood diseases, viral and bacterial infections cause the most common, followed by respiratory inflammation caused by allergies. If the cough and other symptoms of the child are not relieved by treatment according to the previous two conditions, mycoplasma infections should be considered. More meaningful is the titer test for mycoplasma antibodies, if the child has the relevant symptoms, found positive for mycoplasma antibodies, can be diagnosed. 4, mycoplasma pneumoniae infection how to treat. The key to the treatment of Mycoplasma pneumoniae infection is the choice of antimicrobial agents, because mycoplasma mainly exists intracellularly, and the often used cephalosporins, penicillins antimicrobial agents in the intracellular concentration is very low, the effect is poor. Now generally use azithromycin, erythromycin to treat, especially recommended is Zithromax, because the drug purification is better, the effect is also more significant. For cough caused by Mycoplasma pneumoniae infection, nebulization is a better adjunctive treatment. 5.How long is the course of treatment for Mycoplasma pneumoniae infection? When to stop the medication? Because Mycoplasma pneumoniae lives in the cells, it takes a long course of treatment to completely kill it, and Zithromax treatment, for example, is generally a course of treatment with Zithromax treatment for 3 days and stopping for 4 days. 6.Mycoplasma pneumoniae antibody titers do not drop, do I need to keep treating? Because mycoplasma pneumoniae infection in children, mycoplasma antibody titers may exist in the body for up to 3-6 months, so we should diagnose mycoplasma pneumoniae infection theoretically at least two blood draws to see a continuous rise in titers to confirm the diagnosis, but because of the invasive nature of blood draws, there is usually no need for multiple blood draws, and the diagnosis can be made through the child’s symptoms. The success of treatment is still judged by the symptoms, which means that as long as the symptoms disappear and the course of treatment is sufficient, you can boldly stop the medication without waiting for the antibody titer to drop completely. Similarly, because of the nature of mycoplasma antibody titers, there is a misconception that leads to overtreatment of Mycoplasma pneumoniae infection. Because cough is a very common symptom in children, often parents or inexperienced doctors, seeing a child coughing and previously having Mycoplasma pneumoniae infection, check the mycoplasma antibody titer several times and, seeing a high titer, treat the child according to mycoplasma infection, which is actually incorrect because mycoplasma infection must be a diagnosis of exclusion, with an idiosyncratic dry cough, high fever, exclusion of common bacterial and viral infections, exclusion of allergy Otherwise, diagnosis and treatment based on titer results alone are often ineffective and wasteful.