Upper respiratory tract infections cover the infections that impact the region between the oral nasal region and the onset of the bronchus. They are the most common infections of childhood. In an average, 70% of the children see a doctor due to the upper respiratory tract infections. Children and infants get about 3 to 8 upper respiratory tract infection a year, where school-age children get upper respiratory tract infection 2 to 6 times a year. As age increases, the frequency of the disease decreases.
What Impacts the Upper Respiratory Tract Infections Seen in Children?
Gender, race, geographical region, environmental factors, active or passive smoking, socioeconomic status, living in a crowded environment, psychological stress are all among the causes that lead to differences in the upper respiratory tract infections encountered in different regions.
The severity of the infection depends on the age of the infant, the age of the child, whether the same microbe has been encountered before, allergies and the nutritional condition. The same microbe can lead to different diseases among family members. The severity of the diseases may also be different.
Why Do Children Get Upper Respiratory Tract Infections?
In about 90% to 95% of the upper respiratory tract infections, the cause is the viruses. It is known that more than 200 hundred types of viruses cause the upper respiratory tract infections. The most common ones are the Rhinoviruses accounting for 30% to 35% of all upper respiratory tract infections. Rhinoviruses have more than hundred types that lead to upper respiratory tract infections. Among other types of viruses those lead to upper respiratory infections are parainfluenavirus, enteroviruses, respiratory syncytial virus, influenza virus, adenovirus, coronavirus, etc. Bacteria account for about 5% to 10% of all upper respiratory tract infections in children. Among the types of bacteria that cause upper respiratory tract infections in children are h. influenzae, m. pneumoniae, s.aureus, s. s.pyogenes, pneumoniae, b. pertussis, m. catarrhalis, etc.