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Bordetella bronchiseptica

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A gram-negative rod shaped organisms involved in respiratory pathogens in most mammalian species causing tracheobronchitis in dogs and atrophic rhinitis in swine.


Bordetella bronchiseptica has a size of at least 0.5-1 micrometers in diameter by 5 micrometers in length that contains or may not contain flagella depending on the environmental stimuli and can able to grow at temperature about 35’C-37’C. It has a circular chromosome with 5,007 coding sequences and one or more plasmid depending on the type of strain where DNA is present in network of fibers containing gene that encode pili yet does not encodes complete pathway for biosynthesis of required intermediates.

Bordetella bronchiseptica is commonly colonized and isolated in respiratory tract of animals but can survive also in harsh environment. It has a 5 layered cell wall that gives an organism lobulated contour appearance and has channels between lobules.

Bordetella bronchiseptica has a broad spectrum of host range including cats, dogs, swine and rodents as well as humans which manifest symptoms like coughing, pyrexia, sneezing, nasal discharge, dyspnea and cyanosis. It is also associated in rarely cases with endocarditis,peritonitis, wound infections and meningitis.

Scientific classification:

Kingdom: Bacteria
Phylum: Proteobacteria
Class: Beta Proteobacteria
Order: Burkholderiales
Family: Alcaligenaceae
Genus: Bordetella
Species: Bordetella bronchiseptica

See also:


Bordetella pertussis