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.
Asthma is a respiratory condition affecting the tiny airways in the lungs. It's been the most common chronic disease in children for decades and symptoms can be triggered by an upper-respiratory infection, inhaled allergens, irritants such as secondhand smoke, cold and dry air, exercise, even a temper tantrum.