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.
What is Asthma? Asthma is an allergic disorder characterized by spasms of the bronchi (the airway tubes); swelling of the mucus lining of the lungs; and excessive production of a thick, viscous mucus. The major concern with asthma is that it can lead to respiratory failureâthe inability to breathe. WARNING: An acute asthma attack can be a medical emergency.