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 Cause and Risk Factors. Cause and Risk Factors for Whooping Cough. Whooping cough is caused by bacteria called Bordetella pertussis (also called B. pertussis). Several types of Bordetella bacteria have been identified.