Knowledge about bronchiolitis

Bronchiolitis is a common disease among children, and its epidemic trend is also very obvious. Therefore, we cannot ignore this disease and must nip its outbreak in the bud to avoid more serious consequences and cause certain degrees of losses. So, if you want to curb the disease, how can you do it without some professional knowledge? Provide you with relevant knowledge about bronchiolitis.

Bronchitis refers to inflammation of the bronchi. The most common and severe type of bronchitis in children is bronchiolitis, which occurs frequently in winter and can cause local epidemics. The lesions of bronchiolitis mainly occur in the small bronchi in the lungs, also known as the bronchioles, hence the name "bronchiolitis". It is usually a complication caused by viral infections such as the common cold and influenza, but may also be caused by bacterial infections. It is a common acute lower respiratory tract infection in children.

Cause of the disease. The main pathogen of bronchiolitis is respiratory syncytial virus, which may account for 80% or more; others are adenovirus, parainfluenza virus, rhinovirus, influenza virus, etc.; a few cases may be caused by Mycoplasma pneumoniae; after infection with the virus, the tiny bronchioles become congested, edematous, and have increased mucus secretion, and the necrotic mucosal epithelial cells fall off and block the lumen, leading to obvious emphysema and atelectasis. The inflammation often involves the alveoli, alveolar walls and lung interstitium, so it can be considered a special type of pneumonia.

Bronchiolitis is different from general tracheitis or bronchitis. Its clinical symptoms are similar to pneumonia, but wheezing is the main symptom. This disease mostly occurs in children under 2.5 years old, 80% are under 1 year old, and most are children under 6 months old.

Bronchiolitis can sometimes cause epidemics. There were three epidemics in rural areas of southern my country in the 1970s, in Yuncheng, Shanxi in the 1980s, and in Beijing and Tianjin in the 1990s. When it was prevalent in the south in the early 1970s, there was a lack of knowledge about the disease, and the names of the disease were different and the pathogen was unknown. Later, the Ministry of Health organized a national collaboration to monitor and study the epidemic, and it was named "epidemic asthmatic pneumonia". In order to determine its pathogen, medical researchers have successfully isolated the pathogen of epidemic asthmatic pneumonia, respiratory syncytial virus, after years of research in 1997, and identified the pathogen of the epidemic as respiratory syncytial virus subtype A. This provides an important basis for the future production of effective vaccines to prevent the epidemic of bronchiolitis.

I believe that every friend has now realized the importance of understanding the relevant knowledge about bronchiolitis. With this knowledge, we will be able to know ourselves and our enemies, and win every battle. The same applies to defeating diseases. Knowing this knowledge can provide a strong theoretical basis for preventing the disease from becoming an epidemic.