E. coli and other facultative anaerobes constitute about 0.1% of gut flora, and fecalâoral transmission is the major route through which pathogenic strains of the bacterium cause disease.
Asthma symptoms in children ages 5-11. Common asthma signs and symptoms in children ages 5 to 11 include: 1  Coughing, particularly at night. 2  Wheezing. 3  Difficulty breathing. 4  Chest pain, tightness or discomfort. 5  Avoiding or losing interest in sports or physical activities.
Will they grow out of it? The natural history of asthma also varies from one child to the next. Symptoms may begin at any age, may persist or stop, and then may recur many years later. The majority (70%) of young adults with asthma have had recurrent wheeze in their preschool years.