Table of Contents
Is Bordetella pertussis cocci or bacilli?
Bordetella pertussis is a Gram-negative, aerobic, pathogenic, encapsulated coccobacillus of the genus Bordetella, and the causative agent of pertussis or whooping cough.
What shape is Bordetella bronchiseptica?
Bordetella bronchiseptica is a small, gram-negative, rod-shaped bacterium of the genus Bordetella. It can cause infectious bronchitis in dogs and other animals, but rarely infects humans. Closely related to B.
Is Bordetella a coccobacilli?
MICROBIOLOGY. Bordetella are small, aerobic Gram-negative coccobacilli. Organisms are fastidious, need special media (such as charcoal blood agar with cephalexin, Regan Lowe or Bordet-Gengou media) for isolation.
Is Bordetella pertussis motile or nonmotile?
nonmotile organism
pertussis is a nonmotile organism” (21), we have demonstrated that B. pertussis can be motile and express flagella. Several lab-adapted strains and clinical isolates are motile, and B. pertussis motility is enhanced in the Bvg(−) phase.
What type of organism is Bordetella pertussis?
Pertussis, a respiratory illness commonly known as whooping cough, is a very contagious disease caused by a type of bacteria called Bordetella pertussis. These bacteria attach to the cilia (tiny, hair-like extensions) that line part of the upper respiratory system.
What bacteria is in pertussis?
Pertussis is also known as whooping cough. It is a highly infectious bacterial disease involving the respiratory tract. It is caused by a bacterium (Bordetella pertussis or Bordetella parapertussis ) that is found in the mouth, nose and throat of an infected person.
Does Bordetella pertussis have flagella?
pertussis is a nonmotile organism” (21), we have demonstrated that B. pertussis can be motile and express flagella. Several lab-adapted strains and clinical isolates are motile, and B. pertussis motility is enhanced in the Bvg(−) phase.
What kind of virus is Bordetella?
Bordetella organisms are small, gram-negative coccobacilli. They are strict aerobes. The most clinically important species is Bordetella pertussis, which causes whooping cough.
Is Bordetella parapertussis motile?
Of the three Bordetella species, Bordetella pertussis and Bordetella parapertussis are nonmotile human pathogens, while Bordetella bronchiseptica expresses flagellin and causes disease in animals and immunocompromised human hosts.
Does Bordetella Bronchiseptica have flagella?
Bordetella bronchiseptica encodes and expresses a flagellar apparatus. In contrast, Bordetella pertussis, the causative agent of whooping cough, has historically been described as a nonmotile and nonflagellated organism.
What is the most severe stage of whooping cough?
The paroxysmal stage of Pertussis is characterized by recurring intense episodes of coughing. An episode or “paroxysm” consists of a series of coughs in rapid succession with increasing intensity. The last cough in the series is followed by a large inspiration that produces a characteristic “whoop” sound.
Which class of antibiotics works best for Bordetella pertussis?
Erythromycin, a macrolide antibiotic, has been the antimicrobial of choice for treatment or postexposure prophylaxis of pertussis. It is usually administered in 4 divided daily doses for 14 days.
Is Bordetella pertussis a virus or bacteria?
Is pertussis a bacteria or virus?
Pertussis is also called whooping cough. It is a serious lung infection caused by bacteria. It is also very contagious and causes coughing fits.
Does Bordetella pertussis have Pili?
The major pilins in Bordetella are Fim2 and Fim3. Other major pilins (FimX, FimN and FimA) are also encoded by most strains, but their production has not been detected.
Does Bordetella pertussis have a cell membrane?
Like other gram negative bacteria, it possesses an inner and outer membrane, with a thin peptidoglycan cell wall in between. This cell wall is attached to the outer membrane via lipoproteins. Like other gram negatives, the outer membrane of B.
Is Bordetella a bacteria or a virus?
Bordetella bronchiseptica (B. bronchiseptica) is a bacterium that is commonly associated with respiratory disease in dogs. It can also infect cats, rabbits, and, in rare cases, humans. It is one of the most common bacterial causes of canine infectious tracheobronchitis, which is also sometimes called kennel cough.