Ch.26: Sexually transmitted diseases

Question 1

What is the causative agent of syphilis?

Answer 1

Treponema pallidum.

Question 2

What is the primary symptom of primary syphilis?

Answer 2

Painless chancre(s) at the site of infection.

Question 3

What happens during the incubation stage of syphilis?

Answer 3

The bacterium multiplies and spreads in the body.

Question 4

What is the manifestation of secondary syphilis?

Answer 4

Generalized rash.

Question 5

What are the potential effects of tertiary syphilis?

Answer 5

Effects on the heart and central nervous system (CNS).

Question 6

How is congenital syphilis transmitted?

Answer 6

From a pregnant mother to the fetus.

Question 7

What is the outcome if primary syphilis goes untreated?

Answer 7

It enters the primary latent stage.

Question 8

Which stage of syphilis is characterized by congenital defects in the fetus?

Answer 8

Congenital syphilis.

Question 9

What is the Gram reaction of Staphylococcus epidermidis?

Answer 9

Gram-positive.

Question 10

What is the cellular morphology of Neisseria meningitidis?

Answer 10

Gram-negative diplococci.

Question 11

What disease is caused by Streptococcus pyogenes?

Answer 11

Streptococcal pharyngitis (strep throat).

Question 12

What are the distinguishing features of Listeria monocytogenes?

Answer 12

Gram-positive, rod-shaped bacterium; can cause meningitis in immunocompromised individuals.

Question 13

What is the virulence factor of Clostridium tetani?

Answer 13

Tetanospasmin, a neurotoxin causing muscle rigidity.

Question 14

Which pathogen is associated with Legionnaires’ disease?

Answer 14

Legionella pneumophila.

Question 15

What is the Gram reaction of Escherichia coli?

Answer 15

Gram-negative.

Question 16

What disease is caused by Bordetella pertussis?

Answer 16

Whooping cough (pertussis).

Question 17

What is the life cycle of Herpesvirus Varicella-Zoster?

Answer 17

Primary infection (chickenpox) followed by latency and later reactivation (shingles).

Question 18

What is the disease caused by Treponema pallidum?

Answer 18

Syphilis.

Question 19

What is the Gram reaction of Salmonella enterica?

Answer 19

Gram-negative.

Question 20

What is the distinguishing feature of Shigella dysenteriae?

Answer 20

Causes severe dysentery with bloody diarrhea.

Question 21

What is the virulence factor of Clostridium botulinum?

Answer 21

Botulinum toxin, a neurotoxin causing paralysis.

Question 22

What is the disease caused by Yersinia pestis?

Answer 22

Bubonic plague.

Question 23

What is the cellular morphology of Streptococcus pneumoniae?

Answer 23

Gram-positive cocci in pairs (diplococci).

Question 24

What is the disease caused by Rotavirus?

Answer 24

Gastroenteritis in infants and young children.

Question 25

What is the distinguishing feature of Giardia lamblia?

Answer 25

Causes giardiasis, a diarrheal illness, and has a distinctive teardrop-shaped morphology.

Question 26

What is the Gram reaction of Corynebacterium diphtheriae?

Answer 26

Gram-postive

Question 27

What is the disease caused by Rabies virus?

Answer 27

rabies, a viral encephalitis

Question 28

What is the Gram reaction of Staphylococcus aureus?

Answer 28

Gram-positive

Question 29

What is the disease caused by streptococcus mutans

Answer 29

dental carries (tooth decay)

Question 30

What is the characteristic feature of chancres in primary syphilis?

Answer 30

painless and full of spirochetes

Question 31

What is the final stage of syphilis caused by Treponema pallidum, occurring after several years?

Answer 31

Tertiary syphilis, with effects on the heart and central nervous system.

Question 32

What is the primary symptom of primary syphilis caused by Treponema pallidum?

Answer 32

Chancres at the site of infection.