Question 1

Which of the following diseases is caused by a gram negative coccobacillus and is primarily prevented by the DTaP vaccine in children?

Accepted Answer

Whooping Cough (Pertussis)

Question 2

A patient presents with a severe sore throat, strawberry tongue, and a sandpaper-like rash. Which toxin is most likely responsible for these symptoms?

Accepted Answer

Streptococcal Pyrogenic Exotoxin (SPE)

Question 3

Which of the following diseases is NOT nationally notifiable in the United States?

Accepted Answer

Scarlet Fever

Question 4

A 65-year-old patient develops pneumonia after a recent hospital stay. Which vaccine could have reduced their risk for this disease?

Accepted Answer

Pneumococcal conjugate vaccine (PCV13)

Question 5

Which disease is caused by an obligate intracellular parasite and can lead to pelvic inflammatory disease (PID) if left untreated?

Accepted Answer

Chlamydia

Question 6

A patient presents with a bullseye rash after hiking in a wooded area. Which organism is most likely responsible for this presentation?

Accepted Answer

Borrelia burgdorferi

Question 7

Which of the following diseases is tested for using a TB skin test (TST) or TB blood test, and confirmed by the presence of Ghon complexes on X-rays?

Accepted Answer

Tuberculosis

Question 8

Which disease is associated with the production of both Toxin A and Toxin B, leading to severe diarrhea and colitis?

Accepted Answer

Antibiotic Associated Diarrhea (C. difficile)

Question 9

A patient with a history of recent antibiotic use develops severe watery diarrhea and abdominal pain. Which organism is most likely responsible?

Accepted Answer

Clostridium difficile

Question 10

Which of the following diseases is transmitted by tick bites and can cause a high fever and rash, potentially leading to shock syndrome?

Accepted Answer

Rocky Mountain Spotted Fever

Question 11

Which disease is caused by a gram negative diplococcus and is primarily transmitted through sexual contact?

Accepted Answer

Gonorrhea

Question 12

Which of the following is an emerging infectious disease due to lowered vaccination rates?

Accepted Answer

Whooping Cough (Pertussis)

Question 13

A patient presents with a persistent cough described as a 'whooping' sound. Which of the following is the most likely causative agent?

Accepted Answer

Bordetella pertussis

Question 14

Which disease is caused by a very small gram-negative rod and is transmitted by tick bites?

Accepted Answer

Rocky Mountain Spotted Fever

Question 15

Which of the following diseases is NOT zoonotic?

Accepted Answer

Scarlet Fever

Question 16

A patient is diagnosed with latent TB infection (LTBI). Which organism is responsible for this condition?

Accepted Answer

Mycobacterium tuberculosis

Question 17

Which of the following diseases is associated with the development of Ghon complexes visible on X-rays?

Accepted Answer

Tuberculosis

Question 18

Which disease is caused by Streptococcus pyogenes and can present as either pharyngitis or a rash with high fever?

Accepted Answer

Strep throat and Scarlet Fever

Question 19

Which of the following is a gram positive cocci that can cause pneumonia, especially in older adults?

Accepted Answer

Streptococcus pneumoniae

Question 20

A patient develops a rash and fever after a tick bite. Which of the following is the most likely diagnosis?

Accepted Answer

Rocky Mountain Spotted Fever

Major Bacterial Diseases: Agents, Transmission, and Clinical Features

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