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.
Signs and symptoms of asthma are not the same with everyone, and they may be mistaken for signs of other common childhood illnesses. Several studies show that as many as 50 to 80 percent of children with asthma develop symptoms before their fifth birthday. 1  Asthma is frequently not diagnosed correctly.