<unk>  is a Gram-negative, aerobic, pathogenic, encapsulated coccobacillus of the genus<unk> , and the causative agent of<unk>  or whooping cough. Like B. bronchiseptica, B.<unk>  is motile and expresses a flagellum-like structure. Its virulence factors include<unk>  toxin, adenylate cyclase toxin, filamentous hæmagglutinin, pertactin, fimbria, and tracheal cytotoxin. The bacterium is spread by airborne droplets; its incubation period is 7–10 days on average (range 6–20 days). Humans are the only known reservoir for B.<unk> . The complete B.<unk>  genome of 4,086,186 base pairs was published in 2003. Compared to its closest relative B. bronchiseptica, the genome size is greatly reduced. This is mainly due to the adaptation to one host species (human) and the loss of capability of survival outside of a host body.
Bordetella pertussis
Haemophilus influenzae
Bacillus anthracis
Rhodococcus equi
Mycoplasma pneumonia
Neisseria meningitidis
Legionella
Bordetella bronchiseptica