TOPICS: Bordetella Pertussis, bacteria, gram negative, Bordet-Gengou agar, Regan-Lowe medium, toxin, Gi subunit, increased cAMP, adenylate cyclase, tracheal cytotoxin, filamentous hemagglutinin, lymphocytosis, catarrhal stage, cough, fever, paroxysmal stage, coughing spells, post tussive vomiting, convalescent stage, azithromycin, DTaP vaccine