Dordetella Pertussis
Definition:

Bordetella pertussis belongs to the genus Bordetella. It is a Gram-negative, aerobic coccobacillus which the main agent that causes whooping cough.


Diagnosis:

Nasopharyngeal swab is used for Gram stain, Bordet-Gengou growth plate with cephalosporin that shows mercury-drop colonies.