Respiratory syncytial virus is the most important cause of fatal acute respiratory infection in infants and young children. Respiratory syncytial virus is transmitted through hands, contaminated items and respiratory tracts, and is prevalent every winter. By the age of 4, almost

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(special author: Dr. Dong, School of Medicine, Shanghai Jiaotong University)

respiratory syncytial virus (respiratory syscytial virus, RSV) is the most important cause of fatal acute respiratory infection in infants and young children. The typical symptoms are bronchioles and pneumonia, but in older children and adults, they mainly cause upper respiratory infection .

Respiratory syncytial virus is transmitted through hands, contaminated items and respiratory tracts. It is epidemic every winter. By the age of 4, almost everyone has been infected.

This virus infection is limited to the respiratory tract and does not produce viremia. The virus invades the respiratory epithelial cells and proliferates, causing the cell to fusion and then spread to the lower respiratory tract. The pathogenic mechanism of the virus causing severe respiratory infection in infants is mainly pathological immune damage. Bronchial and bronchiole necrosis are combined with mucus, fiber, etc., which can easily block the narrow airways of infants and young children. In infant infections between 2 and 6 months, it can lead to severe bronchioles and pneumonia, causing death. Respiratory syncytial virus is also an important pathogen of infection in hospitals.

After respiratory syncytial virus infection, the immunity is weak and natural infection cannot prevent reinfection. Antibodies transmitted to the fetus through the placenta cannot prevent infant infection. There is no safe and effective prevention vaccine so far.

Therefore, if you want to reduce the probability of your child being infected with respiratory syncytial virus, you must do:

1. During the epidemic, try to avoid going to places where people gather. At the same time, disinfection measures should be taken in public places, such as using lactic acid fumigation, and using lactic acid to pay attention to alcohol scrubbing and disinfection of utensils in public places.

2. Wash your hands frequently, especially those with children at home, pay attention to the development of personal hygiene habits. During the epidemic season of respiratory viruses, be careful not to have too "close contact" with your children, do not feed them with your mouth, or kiss them.

3. Isolate the patient in time to prevent transmission.

4. Once a young child is found to be infected with the virus, it is necessary to actively treat it to prevent bacterial infection. Infection with respiratory monosyncytosis virus, the prognosis of is good, and medical methods similar to those of the treatment of bronchopneumonia are often adopted. Some hospitals also recommend antiviral drugs to treat atomize.