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 (or Asthma bronchiale) is a disease that hurts the airways inside the lungs. It causes the tissue inside the airways to swell. Asthma also causes the bands of muscle around the airways to become narrow. This makes it hard for enough air to pass through and for the person to breathe normally. Asthma also causes mucus-making cells inside the airways to make more mucous than normal.