Final Exam Flashcards
What are extracellular proteins that cause cell lysis and death by damaging the host cytoplasmic membrane
cytolic toxins
Infection by which of the following results in the formation of Ghon complexes
Mycobacterium tuberculosis
Cystitis is most often caused by
E. coli
Poultry products are a likely source of infection by
Salmonella enterca
The patient is suffocating because of an inflamed epiglottis. What is the etiology of the symptoms?
Haemophilus
The patient is suffocating because of the accumulation of dead tissue and fibrin in her throat. What is the etiology of the symtpoms?
Corynebacterium
A patient has a paroxysmal cough and mucus accumulation. What is the etiology of the symptoms?
Bordetella
The CD4 molecule is
a cell-surface protein receptor for HIV
Which one of the following causes a diseases characterized by the catarrhal, paroxysmal, and convalescent stages?
Bordetella pertussis
Which of the following can be transmitted from an infected mother to her fetus across the placenta?
cytomegalovirus
Which of the following is the causal agent of gastric ulcers?
Helicobacter pylori
The greatest single cause of blindness in the world s
trachoma
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
varicella-zoster virus
Enteric bacteria such as salmonella spp., shigella spp., and Escherichia spp. most often contaminate and spoil what?
meat
8yo with scabs and pus filled vesciles on face and throat.
chickenpox
Coliforms in a water sample indicate _________ contamination
fecal
Legionella pneumophil is generally transmitted by
contaminated water in coolers, pools and domestic water systems
The type of Ecoli that produces a verotoxin similar to the one produced by Shigella dysenteriaeis _______ Ecoli
enterohemorrhagic
What virulence factors of Yersenia pesti prevent phagocytosis by cells of the immune system
the capsule
How is the syphillis spirochete initially transmitted
through tiny breaks in the skin epithelial layer
The primary disease reservoir for plague is
rats
Meningitis can be caused by
viral, bacterial, or fungal infections
Lymphogranuloma venereum is a sexually transmitted disease caused by distinct strains of
Chlamydia trachomatis
The causative agent of Hansen’s disease is
Mycobacterium leprae
Another name for pertussis is
whooping cough
The single most important physical sign of primary syphilis is
the chancre
The inflammatory response to Corynebacterium diptheriae infections results in the production of a lesion caled
pseudomembrane
Cholera begins following a bite from a mosquito?
F
The most likely primary site of replication during mononucleosis is the B lymphocyte
T
Cholera can be transmitted by water or food
t
Campylobacter infections are the most common foodborne infections in the United States
T
E Coli is found naturally in the intestine of birds, humans and animals
t
A patient with AIDS often dies of a variety of infections caused by opportunistic microorganisms
T
The loss of CD4T helper cells leads to the overt consequences of an HIV infection
T
Chickenpox, caused by herpesvirus. results in a systemic papular rash that quickly heals
T
