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Effects of E.coli on Human Iron Acquisition and Infections

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Effects of E.coli on Human Iron Acquisition and Infections

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Questions and Answers

Which of the following is the most important specimen collection method for diagnosis of Bordetella pertussis infection?

Blood culture

Nasal saline wash (correct)

Nasopharyngeal swab

Cough plate

What is the primary reason for the use of charcoal agar media with cephalexin for culturing Bordetella pertussis?

To produce larger colonies for easier identification

To enhance the growth of Bordetella pertussis

To provide a selective and enrichment environment (correct)

To inhibit the growth of other respiratory pathogens

Which of the following is the first-line treatment for Bordetella pertussis infection?

Azithromycin

Ceftriaxone

Erythromycin (correct)

Trimethoprim-sulfamethoxazole

Which of the following is the primary purpose of the vaccination against Bordetella pertussis?

To protect infants who are most vulnerable to the disease Signup and view all the answers

What is the primary characteristic that distinguishes Bordetella pertussis from Haemophilus influenzae and Legionella pneumophila?

Oxygen requirement Signup and view all the answers

Which of the following is the most accurate statement regarding the morphology of Bordetella pertussis?

It is a small, encapsulated coccobacillus Signup and view all the answers

What is the primary reason for the use of the direct fluorescent antibody (DFA) test in the diagnosis of Bordetella pertussis infection?

To provide a rapid and sensitive method for detecting the bacteria in clinical samples Signup and view all the answers

Which of the following is the primary reason for the use of trimethoprim-sulfamethoxazole as an alternative treatment for Bordetella pertussis infection?

It is the only effective treatment option for erythromycin-resistant strains Signup and view all the answers

What is the primary purpose of administering the Bordetella pertussis vaccine during the last trimester of pregnancy?

To provide passive immunity to the newborn infant Signup and view all the answers

Which of the following is the most accurate statement regarding the epidemiological use of the ELISA test for Bordetella pertussis?

It is used for epidemiological surveys to determine the prevalence of Bordetella pertussis infection Signup and view all the answers