[mass noun]a contagious bacterial disease chiefly affecting children, characterized by convulsive coughs followed by a whoop 百日咳。 亦称 pertussis
The organism responsible is Bordetella pertussis, a Gram-negative bacterium intermediate between a coccus and a bacillus 由百日咳博德特拉氏菌感染引起,此菌为介于球菌和杆菌的一种革兰氏阴性细菌