Exam 18: Haemophilus and Other Fastidious Gram-Negative Bacilli

A mother brings her lethargic,feverish baby into the emergency department.The baby is diagnosed with meningitis and the doctor does a spinal tap.The cerebrospinal fluid (CSF)Gram stain shows many tiny gram-negative rods.What is the most probably identification of this organism?

What is the drug of choice for treating a life-threatening illness caused by H.influenzae?

All of the following are normal inhabitants of the human oral cavity EXCEPT:

All the following organisms are associated with human illness EXCEPT:

How is Bordetella disease spread?

The HACEK group includes all of the following EXCEPT:

Which species are associated with infections in humans?

What organisms often are involved in septicemia in the granulocytopenic patient?

Which one of the virulence factors associated with Haemophilus spp.plays the most significant role in the invasiveness of the organism?

A microbiologist is reading a sputum culture and notices that there is no growth on the sheep blood and MacConkey agars,but there is growth on the chocolate plate.The colonies on the plate are translucent,moist,smooth,and convex,with a mousy odor.What is the most likely identification of the organism?

What is the name of the organism that causes tularemia that can be contracted from rabbits?

Which species of Haemophilus requires both X and V factors?

What agar is used to isolate Bordetella species?

What is the drug of choice for treating a Legionella infection?

What organism causes Brazilian purpuric fever (BPF)?

What Haemophilus species is called the Koch-Weeks bacillus?

What organism causes the disease called whooping cough?

What medium is used to isolate Legionella?

All of the following are rapid methods used to definitively identify Legionella species EXCEPT:

What is the specimen of choice for Bordetella species?