Question 1

Which of the following is the causative agent of gonorrhea?

Accepted Answer

Neisseria gonorrhoeae

Question 2

A newborn develops conjunctivitis after vaginal delivery. Which STD is most likely responsible, and what is the causative agent?

Accepted Answer

Gonorrhea; Neisseria gonorrhoeae

Question 3

Which stage of syphilis is characterized by a painless sore (chancre) at the site of infection?

Accepted Answer

Primary stage

Question 4

A patient presents with a rash on the palms and soles of the feet several weeks after a painless genital sore resolved. Which STD and stage is most likely?

Accepted Answer

Syphilis; Secondary stage

Question 5

Which of the following statements about Neisseria gonorrhoeae is TRUE?

Accepted Answer

It can cause neonatal conjunctivitis if transmitted during birth

Question 6

Which STD is associated with a multi-stage disease progression, including primary, secondary, and tertiary stages?

Accepted Answer

Syphilis

Question 7

A patient with syphilis does not seek medical attention after the appearance of a chancre. What is the most likely outcome?

Accepted Answer

The infection progresses to secondary and possibly tertiary stages

Question 8

Which STD is most commonly associated with genital warts and has a vaccine available for cancer-causing strains?

Accepted Answer

HPV (Human papillomavirus)

Question 9

Which of the following is a key difference between HSV and HPV infections?

Accepted Answer

HSV causes painful ulcers, while HPV is associated with genital warts and cancer risk

Question 10

Which of the following best describes the transmission route for HPV?

Accepted Answer

Direct contact with infected skin or mucosa

Question 11

A patient presents with painful vesicular lesions on the genitalia. Which STD is most likely responsible?

Accepted Answer

Herpes simplex virus (HSV)

Question 12

Which of the following HPV types are most associated with cancer risk?

Accepted Answer

Types 16 and 18

Question 13

Which STD can cause systemic infection affecting internal organs in its late stage?

Accepted Answer

Syphilis

Question 14

Which of the following is a common misconception about the treatment of HSV infections?

Accepted Answer

Antiviral medications help control outbreaks but do not cure the infection

Question 15

A patient is asymptomatic but tests positive for HPV during a routine exam. What is the significance?

Accepted Answer

Asymptomatic carriers can still transmit the virus

Question 16

Which STD is most likely to cause a deceptive infection, where symptoms appear, disappear, and then reappear years later?

Accepted Answer

Syphilis

Question 17

Which of the following is a recommended prevention strategy for HPV?

Accepted Answer

Vaccination against high-risk types

Question 18

A patient with syphilis believes they are recovering after the secondary stage rash disappears. What is the most important clinical consideration?

Accepted Answer

The infection may continue internally and progress to tertiary stage

Question 19

Which STD is most likely to be diagnosed by the presence of genital warts during a physical exam?

Accepted Answer

HPV

Question 20

Which of the following equations best represents the probability $$P of $$transmission of an STD during a single sexual contact, given the transmission rate $$r$$ and the number of contacts $$n$$?

Accepted Answer

$$P = 1 - (1 - r)^n$$

Sexually Transmitted Diseases (STDs): Microbiology Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards