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.
A Small Change on Chromosome 17 Increases Asthma Risk by up to 2.3-fold. 1 in 10 people in the U.S. suffers from asthma and it's on the rise. Some reports say up to 1 in 4 urban children have asthma. Anyone who has ever seen an asthma attack knows how awful it is to see someone struggling to breathe.