Variation does not only occur in the structure of individual flowers, but also their arrangement. Some flowers are solitary while others are clustered. The arrangement of flowers on a flower stalk is called the âinflorescence typeâ.
Bronchitis is an infection or inflammation of the large air passages to the lungs. (These airways are called bronchi.) When your child has a cold, sore throat, flu, or sinus infection, the virus that caused it can spread to the bronchi. Once the germs take hold there, the airways become swollen, inflamed, and partly blocked with mucus.
The incidence of bronchiolitis parallels respiratory infections in older children and adults and is most common during fall and winter months. 1  Although infection with respiratory syncytial virus may occur at any age, the clinical disease bronchiolitis develops only in infants and young children. About 75% of cases of bronchiolitis occur in children younger than 1 year of age and 95% occur in children younger than 2 years of age, with a peak incidence at 2â8 months of age.