Bordetella pertussis
and
Bordetella bronchiseptica
belong to the genus
Bordetella
, which comprises 14 other species.
B. pertussis
is responsible for whooping cough in humans, a severe infection in children and less severe or chronic in adults. These infections are restricted to humans and currently increasing worldwide.
B. bronchiseptica
is involved in diverse respiratory infections in a wide range of mammals.