Micro

1.

1 point

The organism that is known to be an intracellular parasite is?

Klebsiella pneumoniae

Clostridium perfringens

Streptococcus pyogenes

Mycobacterium tuberculosis

Streptococcus mutans

2.

1 point

The etiologic agent for fever blisters is?

HSV-5

HSV-4

HSV-2

HSV-3

HSV-1

3.

1 point

The most common etiology for shigellosis in the northerns USA is?

Shigella enteriditis

Shigella flexneri

Shigella sonnei

Shigella dyenteriae

Shigella coli

4.

1 point

Systemic mycoses include all of the following except:

Ringworm

Cryptococcosis

Histoplasmosis

Blastmomyces

Coccidioidomycosis

5.

1 point

Respiratory syncytial virus

is a leading cause of bronchiolitis in infants

attaches to host cell membranes by means of neuroaminidase

is an enveloped DNA virus of the adenovirus family

mainly causes disease in the Summer months

6.

1 point

Which of the following causes an acute infection in humans, which is transmitted by cats?

Trypanosoma

Balantidium coli

Entamoeba

Toxoplasma gondii

Giardia lamblia

7.

1 point

People with STDs with ulcerative lesions have a significantly higher risk of transmitting and acquiring HIV. This people with ___ are at very high risk for HIV.

Syphilis and gonorrhea

Gonorrhea and chancroid

Syphilis and nongonococcal urethritis

Chancroid and syphilis

HPV and HSV-2

8.

1 point

Select the Hepatitis viruses that do not cause chronic liver disease.

Hep B and C

Hep B and D

Hep C and D

Hep D and E

Hep A and E

9.

1 point

All of the following are gram-negative rods that cause gastroenteritis except:

Pseudomonas

Vibrio

Escherichia

Salmonella

Shigella

10.

1 point

Which of the following statements about hepatitis is false?

Both RNA and DNA viruses can cause hepatitis

There is no vaccine to prevent HCV infection

Lifelong carries of hepatitis A are common

Some kinds of hepatitis can be prevented by vaccine

At least 5 different viruses cause hepatitis

11.

1 point

The etiologic agent for chickenpox is?

HHV-1

HHV-3

HHV-4

HHV-5

HHV-2

12.

1 point

Each of the following statements concerning the human papilloma virus is correct except:

There are more than 50 serotypes

It is one of the papovaviruses

It most commonly causes warts

It is spread by the aerosol route

It causes proliferation in squamous epithelium

13.

1 point

Which of the following pairs are mismatched regarding syphilis?

antibodies produced, no outward signs - primary phase

incubation period - 3 weeks

chancre - indolent(slow to heal)

flu-like symptoms - secondary phase

14.

1 point

Treatment of superficial candidias includes?

miconazole (topical), nystatin (oral)

griseofulvin

metronidazole

chloroquine

tetracycline

15.

1 point

The member of the genus Staphylococcus most commonly associated with urinary tract infections in young sexually active females is

Staphylococcus capitis

Staphylococcus saprophyticus

Staphylococcus hominus

Staphylococcus aureus

16.

1 point

Which of the following is more likely to be true of measles (rubeola) than German measles (rubella)?

It causes birth defects

Koplik's spots are present

It causes only mild illness

Live attenuated virus vaccine is available for prevention

Human beings are the only natural host

17.

1 point

Three organisms, Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae cause a vast majority of bacterial meningitis. What is the MOST important pathogenic component they share?

B-Lactmase

capsule

Endotoxin

protein A

18.

1 point

Which of the following statements about yellow fever is false?

The name yellow comes from the fact that many victims have jaundice

A live attenuated vaccine is widely used to prevent the disease.

Human-to-human transmission is high during an epidemic

Certain mosquitos are biological hosts for the causative agent

Outbreaks of the disease could occur in the US because a suitable vector is present

19.

1 point

The bacterial toxin that attaches to presynaptic terminals of cholinergic nerves (where it blocks release of acetylcholine) is produced by:

Pseudomonas aeruginosa

Corynebacterium diphtheriae

Clostridium tetani

Clostridium botulinum

Bacillus anthracis

20.

1 point

All of the following are true regarding Legionnaire's disease EXCEPT:

Prevention is by DPT vaccine

An atypical pneumonia

Transmission is by droplet

Air conditioning units implicated in infection

A gram negative rod

21.

1 point

With regard to STDs which pair shown below would NOT got together?

N. gonorrhoeae: hard chancre

HPV: genital warts

HSV-2: genital herpes

H. ducreyi; soft chancres

C. trachomatis: nongonococcal urethritis

22.

1 point

The protozoan that is a blood parasite and has an undulating membrane

Toxoplasma

Giardia

Leishmania

Plasmodium

Trypanosoma

23.

1 point

Streptococcus pyogenes causes the following diseases EXCEPT

Impetigo

Carbuncle

Erysipelas

Bacterial endocarditis

Streptococcal throat

24.

1 point

Most gastrointestinal infections are treated with:

Quinacrine

Fluid and electrolytes

Antitoxin

None of these

Penicillin

25.

1 point

The antifungal drug grisefulvin is used to treat:

vaginal infections

systemic infections

nail infections (dermatomycoses)

Rose Gardener's syndrome

histoplasmosis

26.

1 point

Choose the most accurate statement about cryptosporidosis

Waterborne transmission is unlikely

It is prevented by filtration of drinking water

The host range of the causative agent is narrow

The life cycle of the causative agent occurs within small intestinal epithelial cells

27.

1 point

Which of the following is diagnosed by the presence of flagellates in the patient's feces?

Balantidiasis

Trichinosis

Trypansoma

Giardiasis

28.

1 point

Most cases of complicated cystitis are caused by

Proteus

Enterococcus

Klebsiella

Pseudomonas

E. coli

29.

1 point

Which of the following is not a complication of gonorrhea?

Sterility

None of these

Meningitis

Arthritis

PID

30.

1 point

Transmission of shigellosis is primarily by?

poultry

humans

mice

cats

pet turtles

31.

1 point

The most common cause of traveler's diarrhea is probably

Salmonella typhi

Shigella species

Entamoeba coli

Escherichia coli

Giardia lamblia

32.

1 point

Which of the following statements about poliomyelitis is false?

Only a small fraction of those infected will develop the disease

The nerves of sensation are usually most seriously affected

This disease is transmitted via fecal-oral route

Humans are the only natural host

It is classified with the coxasackie viruses in the enterovirus subgroup