Question 1

Which bacterial disease is primarily associated with prolonged coughing and mucus production in children, and is caused by a Gram-negative coccobacillus?

Accepted Answer

Pertussis (Whooping Cough)

Question 2

A patient presents with a red rash and sore throat. Laboratory tests confirm the presence of Streptococcus pyogenes. Which serious complication can arise from this infection due to toxin production?

Accepted Answer

Scarlet fever

Question 3

Which of the following statements about Neisseria gonorrhoeae is CORRECT?

Accepted Answer

It can cause pelvic inflammatory disease (PID) in women, often with asymptomatic symptoms.

Question 4

A patient is diagnosed with Rocky Mountain Spotted Fever. Which vector is responsible for transmitting this disease?

Accepted Answer

Tick

Question 5

Which bacterial infection is characterized by the formation of a pseudomembrane in the throat and can be fatal if untreated?

Accepted Answer

Diphtheria

Question 6

A patient presents with watery diarrhea after recent antibiotic use. Which bacterium is most likely responsible for this infection?

Accepted Answer

Clostridium difficile

Question 7

Which of the following is TRUE regarding Lyme disease?

Accepted Answer

It is caused by Borrelia burgdorferi and transmitted by ticks.

Question 8

Which test is commonly used to detect tuberculosis infection by measuring the immune response to tuberculin?

Accepted Answer

Mantoux test (Tuberculin skin test)

Question 9

A woman is diagnosed with pelvic inflammatory disease (PID) but reports no symptoms. Which bacterium is most likely responsible for this asymptomatic infection?

Accepted Answer

Chlamydia trachomatis

Question 10

Which bacterial disease is associated with a toxin that can cause Toxic Shock Syndrome, especially when the bacteria mutate to produce the toxin?

Accepted Answer

Staphylococcus aureus infection

Question 11

Which of the following bacteria is an obligate intracellular parasite and can be transmitted sexually as well as from mother to child during birth?

Accepted Answer

Chlamydia trachomatis

Question 12

A patient develops a rash after a tick bite and is later diagnosed with Rocky Mountain Spotted Fever. Which is the causative agent?

Accepted Answer

Rickettsia rickettsii

Question 13

Which of the following is NOT a common feature of tuberculosis?

Accepted Answer

Production of a pseudomembrane in the throat

Question 14

Which bacterial disease is prevented by the DPT vaccine?

Accepted Answer

Pertussis

Question 15

A patient presents with a sore throat, fever, and a red rash. Laboratory tests reveal the presence of erythrogenic toxin. Which disease is most likely?

Accepted Answer

Scarlet fever

Question 16

Which of the following bacteria can cause a severe diarrheal disease after disruption of normal gut flora by antibiotics?

Accepted Answer

Clostridium difficile

Question 17

Which of the following is a Gram-negative diplococcus that can cause urethral discharge and pelvic inflammatory disease?

Accepted Answer

Neisseria gonorrhoeae

Question 18

A patient is diagnosed with diphtheria. Which of the following is a key feature of this disease?

Accepted Answer

Formation of a pseudomembrane in the throat

Question 19

Which bacterial infection is most likely to be asymptomatic but can cause serious complications such as infertility if left untreated?

Accepted Answer

Chlamydia trachomatis

Question 20

Which of the following statements about the transmission of tuberculosis is CORRECT?

Accepted Answer

It is transmitted by airborne droplets and can be detected using acid-fast staining.

Bacterial Diseases: Pathogens, Transmission, and Clinical Features

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