The genus Bordetella consists of seven recognized species; of which, three are responsible for human diseases (Table 39-1). These areBordetella pertussis, agent responsible for whooping cough, or pertussis; Bordetella parapertussis, responsible for disease similar to pertussis but the disease is milder; and Bordetella bron-chiseptica, responsible for pertussis-like symptoms in humans. Bordetella aviumis a pathogen of birds, which causes infectionin turkey poultry, but does not cause any infection in humans.
B. pertussis ( pertussis, Latin for intense cough) is the causativeagent of whooping cough, an infectious bacterial illness that affects the respiratory tract. Whooping cough is one of many diseases that can be prevented by vaccine.
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