Mycoplasma, Spirochetes, Chlamydia, and Rickettsia III

Question 1

The predominant mammalian host of HME is the

Answer 1

White tailed deer

Question 2

Most cases are not diagnosed. It ranges from a mild to severe illness with fever, headache, and myalgia

Answer 2

HME

Question 3

Leukopenia and thrompocytopenia are distinguishing features of

Answer 3

HME

Question 4

Common in HME and uncommon in RMSF or Lyme disease

Answer 4

Leukopenia

Question 5

As with HME, is mild to severe disease with fever, headache, and myalgia. A rash is rare

Answer 5

Human Granulocytic Anaplasmosis (HGA)

Question 6

HGA is caused by

Answer 6

Anaplasma phagocytophilum

Question 7

Morulae are present in 20-80% of peripheral blood neutrophils in patients with

-A useful diagnostic feature

Answer 7

HGA

Question 8

Coxiella burnetii causes?

-C burnetti is propagated in ticks or other arthropods

Answer 8

Q fever

Question 9

Transmission of Q fever is primarily through inhalation of

Answer 9

Aerosols

Question 10

Most often a febrile, self-limited illness

-may also develop atypical pneumonia, endocarditis, or hepatitis

Answer 10

Q fever

Question 11

Infection begins in lungs and disseminates through the bloodstream

Answer 11

C. burnetii

Question 12

90% of patients have a rash with

Answer 12

RMSF

Question 13

Leukopenia is common in

Answer 13

HME

Question 14

Neutropenia is common in

Answer 14

HGA

Question 15

Leukopenia and neutropenia are uncommon in

Answer 15

RMSF

Question 16

Rarely detected in monocytesand macrophages of patients with HME

Answer 16

Morulae

Question 17

Occasionally seen in neutrophils of patients with HGA, but not with RMSF

Answer 17

Morulae

Question 18

Histopathologic vasculitis is a hallmark of

-Not observed in ehrlichioses or anaplasmosis

Answer 18

RMSF