CHAPTER 27: Chlamydia, Mycoplasma and Rickettsia

Question 1

Chlamydia sp that infects the eye and genital tract

Answer 1

Chlamydia trachomatis

Question 2

2 respiratory Chlamydial pathogens

Answer 2

C. pneumonia

C. psittaci

Question 3

2 forms of Chlamydia

Answer 3

Reticulate body

Elementary body

Question 4

C. trachomatis serotypes associated with trachoma and neonatal conjunctivitis

Answer 4

A-C

Question 5

C. trachomatis serotypes associated with acute urethritis and pelvic inflammatory disease

Answer 5

D-K

Question 6

C. trachomatis serotypes L1-L3 is associated with ____________

Answer 6

Lymphogranuloma venereum

Question 7

________, a pathogen of birds and mammals, causes

psittacosis in humans.

Answer 7

Chlamydia psittaci

Question 8

2 small bacteria that lack cell wall

Answer 8

Mycoplasma

Ureaplasma

Question 9

_________, a human respiratory pathogen, is the

second most common cause of respiratory infection after Streptococcus pneumoniae

Answer 9

Mycoplasma pneumoniae

Question 10

Mycoplasma pneumoniae adheres to host cells by the ____ protein, localizing to the base of the cilia where it induces _____________

Answer 10

P1

Ciliostasis

Question 11

Treatment for Mycoplasma

Answer 11

Erythromycin, tetracycline, aminoglycosides,

rifampicin, chloramphenicol and quinolones

Question 12

3 Groups of Rickettsia

Answer 12

Spotted fever
Scrub typhus
Typhus

Question 13

The typhus group of Rickettsia includes __________, which cause epidemic and murine typhus respectively.

Answer 13

R. prowazekii and R. typhi

Question 14

Scrub typhus is caused by a single specie of Rickettsia, _______

Answer 14

Rickettsia tsutsugamushi

Question 15

Relapse of R. prowazekii infection months or years later, which is known as ______ and is usually milder than the primary infection

Answer 15

Brill–Zinsser disease

Question 16

____________ are the treatments of choice for Rickettsia, but must be initiated early to influence the outcome.

Answer 16

Tetracyclines and chloramphenicol

Question 17

__________ is a pathogen of cattle, sheep and goats, which localizes in the placenta. It survives desiccation in the environment and is transmitted by contact with infected animals or their products
via the aerosol route

Answer 17

Coxiella burnetii

Question 18

___ fever of Coxiella infection presents as atypical pneumonia, pyrexia of uncertain origin and hepatitis

Answer 18

Q fever