Final Exam

Question 1

What are extracellular proteins that cause cell lysis and death by damaging the host cytoplasmic membrane

Answer 1

cytolic toxins

Question 2

Infection by which of the following results in the formation of Ghon complexes

Answer 2

Mycobacterium tuberculosis

Question 3

Cystitis is most often caused by

Answer 3

E. coli

Question 4

Poultry products are a likely source of infection by

Answer 4

Salmonella enterca

Question 5

The patient is suffocating because of an inflamed epiglottis. What is the etiology of the symptoms?

Answer 5

Haemophilus

Question 6

The patient is suffocating because of the accumulation of dead tissue and fibrin in her throat. What is the etiology of the symtpoms?

Answer 6

Corynebacterium

Question 7

A patient has a paroxysmal cough and mucus accumulation. What is the etiology of the symptoms?

Answer 7

Bordetella

Question 8

The CD4 molecule is

Answer 8

a cell-surface protein receptor for HIV

Question 9

Which one of the following causes a diseases characterized by the catarrhal, paroxysmal, and convalescent stages?

Answer 9

Bordetella pertussis

Question 10

Which of the following can be transmitted from an infected mother to her fetus across the placenta?

Answer 10

cytomegalovirus

Question 11

Which of the following is the causal agent of gastric ulcers?

Answer 11

Helicobacter pylori

Question 12

The greatest single cause of blindness in the world s

Answer 12

trachoma

Question 13

a 45 year old man has pus filled vesicles distributed over his back in the upper right quadrant, over his right shoulder, and URQ of chest. Most likely due to

Answer 13

varicella-zoster virus

Question 14

Enteric bacteria such as salmonella spp., shigella spp., and Escherichia spp. most often contaminate and spoil what?

Answer 14

meat

Question 15

8yo with scabs and pus filled vesciles on face and throat.

Answer 15

chickenpox

Question 16

Coliforms in a water sample indicate _________ contamination

Answer 16

fecal

Question 17

Legionella pneumophil is generally transmitted by

Answer 17

contaminated water in coolers, pools and domestic water systems

Question 18

The type of Ecoli that produces a verotoxin similar to the one produced by Shigella dysenteriaeis _______ Ecoli

Answer 18

enterohemorrhagic

Question 19

What virulence factors of Yersenia pesti prevent phagocytosis by cells of the immune system

Answer 19

the capsule

Question 20

How is the syphillis spirochete initially transmitted

Answer 20

through tiny breaks in the skin epithelial layer

Question 21

The primary disease reservoir for plague is

Answer 21

rats

Question 22

Meningitis can be caused by

Answer 22

viral, bacterial, or fungal infections

Question 23

Lymphogranuloma venereum is a sexually transmitted disease caused by distinct strains of

Answer 23

Chlamydia trachomatis

Question 24

The causative agent of Hansen’s disease is

Answer 24

Mycobacterium leprae

Question 25

Another name for pertussis is

Answer 25

whooping cough

Question 26

The single most important physical sign of primary syphilis is

Answer 26

the chancre

Question 27

The inflammatory response to Corynebacterium diptheriae infections results in the production of a lesion caled

Answer 27

pseudomembrane

Question 28

Cholera begins following a bite from a mosquito?

Answer 28

F

Question 29

The most likely primary site of replication during mononucleosis is the B lymphocyte

Answer 29

T

Question 30

Cholera can be transmitted by water or food

Answer 30

t

Question 31

Campylobacter infections are the most common foodborne infections in the United States

Answer 31

T

Question 32

E Coli is found naturally in the intestine of birds, humans and animals

Answer 32

t

Question 33

A patient with AIDS often dies of a variety of infections caused by opportunistic microorganisms

Answer 33

T

Question 34

The loss of CD4T helper cells leads to the overt consequences of an HIV infection

Answer 34

T

Question 35

Chickenpox, caused by herpesvirus. results in a systemic papular rash that quickly heals

Answer 35

T