In microbiology discuss and evaluate the methods used to identify bordetella pertussis

In microbiology discuss and evaluate the methods used to identify bordetella pertussis

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  1. b. Chlamydophila pneumoniae


    Chlamydophila pneumoniae is a species of Chlamydia. It is an obligate bacterium. It infects the humans and is responsible for the cause of disease pneumonia. This bacteria is undetected by gram staining. It is associated with the cause of symptoms like fever and shivering. It gives positive results for the cold agglutination test.

  2. Antibodies


    Bordetella pertussis is an obligate human pathogen and is the etiological agent of whooping cough. It is known to be an opportunistic organism.

    The pathogenic mechanism of Bordetella pertussis is also known as virulence factor. These virulence factors are known to include adhesins such as filamentous haemagglutinin, fimbriae and pertactin, which allow B. pertussis to bind to ciliated epithelial cells in the upper respiratory tract.

    It is known to be the agent of whooping cough, a highly contagious respiratory disease, dramatic for infants and also for elderly and pregnant women.

    In this case, the antibodies will be the response that is uniquely directed against the organism. It is said earlier that this organism is an opportunistic one, this means that it causes infection when the immunity is down. So, when the immunity is empowered , it will definitely fight against the organism

  3. The answer is letter C


    Bordetella pertussis causes whooping cough by interfering with the activity of ciliated epithelial cells in the trachea.

  4. The correct answer will be option-Staphylococcus aureus


    Humans are surrounded by the microorganisms around which can benefit us and also prove harmful to us as they cause disease to humans. Staphylococcus aureus is a pathogen which causes various human diseases.  

    In the human body, the S. aureus colonizes the mucous membrane and the skin. One of the important niches of the S. aureus is the human nose in the vestibulum nasi.

    Thus, Staphylococcus aureus is the correct answer.

  5. It is difficult to grow bordetella pertussis in a laboratory because of its inability to grow on ordinary laboratory media such as nutrient agar or macconkey agar. The organism will only grow on specialized media supplemented with charcoal, blood (20%), potato (starch) in order to absorb toxic substances which can inhibit its growth in the agar.

  6. answer:

    a response that is uniquely directed against pathogenic bordetella pertussis would involve what component? first line defenses have what aspect in common with each other? they are physical barriers against invading pathogens. the penetration and colonization by pathogens, and the diseases they cause.


  7. The correct answer is D.


    Bordetella pertussis is a gram-negative coccobacillus that causes a disease called whooping cough.

    The bacterium infests the patients by colonizing lung epithelial cells. To do so, it requires adhesins, called filamentous haemagglutinin, fimbriae and pertactin. Once the bacterium is attached to the lung epithelial cells, it produces a cytotoxin that prevents their cilia from moving.

    Another virulent factor from B. pertussis is the pertussis toxin, which alters host immune system through the inhibition of phagocytes response to it.  

  8. 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.

    Scientific name: Bordetella bronchiseptica

    Rank: Species

    Higher classification: Bordetella

    Family: Alcaligenaceae

    Order: Burkholderiales

  9. The correct answer is- Staphylococcus aureus


    Staphylococcus aureus is a gram-positive bacteria commonly found in the nose and skin of humans. It resides in the nose as a member of the normal microflora of the nose.  

    So when present as a member of microbiota it does not cause any disease but this species is opportunistic pathogen because it cause several diseases when our immune system does not function properly or when the immune system becomes weak.

    It can cause illness like cellulitis, impetigo, toxic shock syndrome, sepsis, meningitis, bacteremia, etc. Therefore the right answer is-  Staphylococcus aureus

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