18. a. Chlamydia

Question 1

What gram staining is chlamydia?

Answer 1

negative

Question 2

Why is chlamydia an obligate intracellular organism?

Answer 2

Needs host ATP to replicate

Question 3

What is the elementary body?

Answer 3

Chlamydia outside of the host cell
Infectious but not metabolically active
Phagocytosed into the host cell

Question 4

What is the reticulate body?

Answer 4

Intracellular form of chlamydia

Metabolically active but not infectious

Question 5

How does C. Psittsaci get into the body?

Answer 5

Inhalation of bird droppings

Question 6

What is the incubation period for C. Psittsaci?

Answer 6

1-3 weeks

Question 7

What are the symptoms of C. Psittsaci?

Answer 7

Flu-like symptoms and pneumonia

Question 8

What are the complications of C. Psittsaci?

Answer 8

Respiratory failure
Hepatitis
Endocarditis
Encephalitis
Life-threatening in pregnancy

Question 9

What type of pneumonia is caused by C. Pneumoniae?

Answer 9

Atypical non-culturable

Question 10

Who is at risk for C. pneumoniae?

Answer 10

Older adults

Close quarters

Question 11

What is the incubation period for c. pneumoniae?

Answer 11

3-4 weeks

Question 12

What diseases are caused by c. pneumoniae?

Answer 12

Pneumonia and pharyngitis
Meningoencephaltis
Guillain-Barre syndrome
Reactive arthritis
Myocarditis

Question 13

What is the treatment for c.psittsaci and pneumoniae?

Answer 13

Tetracycline or macrolides

Question 14

Why is penicillin not used to treat psittaci and pneumoniae?

Answer 14

There is no peptidoglycan in the cell wall

Question 15

What lab tests can be used to diagnose psittaci and pneumoniae?

Answer 15

PCR
Serology
Cell culture

Question 16

How is c.trachomatis spread?

Answer 16

Contact

Question 17

What disease is caused by the A-C serotypes of c. trachomatis?

Answer 17

Trachoma

Question 18

What disease is caused by the D-K serotypes of c. trachomatis?

Answer 18

Inclusion conjunctivitis
Neonatal pneumonia
STI

Question 19

What disease is caused by the L serotype of c. trachomatis?

Answer 19

Lymphogranuloma venereum

Question 20

How is trachoma treated?

Answer 20

Surgery to stop eyelashes scraping the cornea

Antibiotics

Question 21

How is inclusion conjunctivitis treated?

Answer 21

Azithromycin or doxycycline

Question 22

What diseases does the C. trachomatis STI cause in women?

Answer 22

Cervicitis
Urethritis
Pelvic inflammatory disease
Pregnancy complications

Question 23

What diseases does the C. trachomatis STI cause in men?

Answer 23

Urethritis
Epididymitis
Proctitis

Question 24

What antibiotics are used to treat C. trachomatis STI?

Answer 24

Macrolide or doxycycline

Question 25

What is the presentation of lymphogranuloma venereum?

Answer 25

Genital ulcer Painful lymphadenopathy Proctocolitis if anal sex

Question 26

What lab tests can be done in the case of lymphogranuloma venereum?

Answer 26

PCR | Serology

Question 27

How is lymphogranuloma venereum treated?

Answer 27

Aspirate buboes | Doxycycline