A formula of a compound that shows the relationship of the atoms in a molecule. The atoms are shown joined by valence bonds (e.g., H-O-H) as opposed to the empirical formula (H2O).
Causes. Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis.
Whooping cough is caused by a type of bacteria called Bordetella pertussis (this is why the illness is sometimes called pertussis). This bacteria damages the lining of the nose, throat and breathing tubes (trachea and bronchi) and causes the coughing.Children get the bacteria from someone who is infected with it.hooping cough is most contagious in the first stage (before the typical cough starts). It may still be contagious 3 or 4 weeks after the cough starts. Antibiotics have very little effect on the severity of the coughing illness.