Ulcerative STD (lecture)

Question 1

What is the causative agent of chancroid??

Answer 1

Haemophilus ducreyi

Question 2

What are the culture requirements of H. ducreyi?

Answer 2

Enriched agar, 10% CO2, 33-35 * C

Question 3

What is the causative agent of syphilis?

Answer 3

Treponema pallidium

Question 4

What type of stain is required to see T. palladium on microscopy and how do they appear?

Answer 4

Silver stain will show motile spirochetes

Question 5

What sequelae are associated with the stages of syphilis infection?

Answer 5

Primary: painless chancre within 2 weeks that heal spontaneously
Secondary: Papulosquamous rashes and condylomata lata
Tertiary: CVD and CNS issues

Question 6

What is used in the diagnosis of T. palladium infection?

Answer 6

Serological Tests

Question 7

What is the DoC for treatment of syphilis?

Answer 7

PCN G.