10 Questions
What is the primary mode of transmission for Bordetella pertussis?
Airborne droplets from coughing or sneezing
Which of the following is the preferred specimen for diagnosis of Bordetella pertussis infection?
Nasopharyngeal swab or saline wash
What is the primary mechanism of action of erythromycin in treating Bordetella pertussis infections?
Disruption of bacterial protein synthesis
Which of the following is a characteristic of the colonies produced by Bordetella pertussis on selective media?
Pinpoint, non-hemolytic colonies
What is the primary purpose of using a combination of Bordetella proteins and diphtheria and tetanus toxoids in the Bordetella pertussis vaccine?
To enhance the immune response against Bordetella pertussis
What is the primary purpose of using trimethoprim-sulfamethoxazole as an alternative treatment for Bordetella pertussis infections?
To treat cases where erythromycin has failed
Which of the following is a characteristic of Bordetella pertussis that contributes to its high contagiousness?
Its potential to cause cyanosis and vomiting
Which of the following tests is the least sensitive for the diagnosis of Bordetella pertussis infection?
Cough plate culture
What is the primary purpose of vaccinating pregnant women against Bordetella pertussis in the last trimester of pregnancy?
To provide passive immunity to the newborn infant
Which of the following is a characteristic of the Bordetella pertussis vaccine that makes it effective in protecting infants?
Its administration starting at 2 months of age
Identify the bacteria causing watery diarrhea, bloody diarrhea, dysentery, and hemorrhagic colitis in human males. Learn about the toxins produced by Enterotoxigenic E. coli (ETEC), Enteropathogenic E. coli (EPEC), Enterohemorrhagic E. coli (EHEC), and Enteroinvasive E. coli (EIEC).
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