16 Questions
What is the main reason that Haemophilus influenzae type b incidence has fallen dramatically since the introduction of the vaccine?
The vaccine is highly effective at preventing infection.
What type of blood agar is required to cultivate Haemophilus species?
Chocolate agar
At what temperature should specimens for Haemophilus testing be incubated?
35-37°C
Which specimen type is most suitable for diagnosing Haemophilus infections?
All of the above
Which factor is required for the growth of Haemophilus species on sheep blood agar?
NAD (V factor)
Which organism is the causative agent for Gonorrhea?
Neisseria gonorrhoeae
What is the hemolysis pattern typically seen in Neisseria species?
Alpha hemolysis
Which type of agar is commonly used to culture Neisseria species in the laboratory?
Thayer Martin agar
Intracellular growth of Neisseria species typically occurs inside which type of cells?
Neutrophils
Which antibiotic is commonly used in the treatment of Neisseria gonorrhoeae infections?
Ceftriaxone
Which disease is caused by Hemophilus ducreyi?
Chancroid
Which nutrient factor is required for the growth of Hemophilus species that require only the V factor?
NAD (V factor)
How does Hemophilus exhibit satellitism?
By growing around an NAD source
Which agar is recommended for the isolation of Hemophilus species?
Chocolate agar
Which test can be used to detect the presence of Haemophilus influenzae type b (Hib) in clinical specimens?
Latex agglutination
Which characteristic is associated with spirochetes?
They have a helical or spiral shape
This quiz covers the proper specimen collection, transport, and processing procedures for Haemophilus influenzae. It includes information on room temperature storage, incubation conditions, and growth characteristics of H. influenzae.
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