1) i m sorry of the following is directly connected in the initiation of dental caries?

A) sucrose

B) lysozyme

C) lactic acid


2) Clostridium difficile-associated diarrhea is usually preceded by

A) eating contaminated food.

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B) a blood transfusion.

C) expanded use the antibiotics.


3) i m sorry of the adhering to statements around salmonellosis is FALSE?

A) that is a bacterial infection.

B) Severity of an illness depends on number of organisms ingested.

C) A healthy and balanced carrier state exists.

D) The mortality rate is high.


4) Disease-causing exotoxins are produced by all of the adhering to organisms EXCEPT

A) Clostridium perfringens.

B) Vibrio cholerae.

C) Shigella dysenteriae.


5) Which among the following conditions of the gastrointestinal mechanism is transmitted by the respiratory route?

A) staphylococcal enterotoxicosis

B) mumps

C) Vibrio gastroenteritis


6) The digestive tract is basically one long tube. The order of the structures, beginning with the mouth, is

A) pharynx, esophagus, stomach, little intestine, large intestine.

B) esophagus, pharynx, stomach, tiny intestine, big intestine.

C) pharynx, esophagus, stomach, huge intestine, small intestine.


7) i m sorry of the adhering to helminthic diseases is a usual infestation discovered in the southeastern united States?

A) Enterobius vermicularis

B) Ascaris lumbricoides

C) Taenia saginata


8) Poultry products are a likely source of infection by

A) Helicobacter pylori.

B) Salmonella enterica.

C) Vibrio cholerae.


9) all of the complying with infections can an outcome from drink contaminated water EXCEPT

A) Cyclospora infection.

B) giardiasis.

C) trichinellosis.


10) which of the complying with organisms feeds on red blood cells?

A) Giardia lamblia

B) Escherichia coli

C) Taenia spp.

D) Vibrio parahaemolyticus

E) Entamoeba histolytica


11) In humans, beef tapeworm infestations are got by ingesting

A) the eggs of Taenia saginata.

B) segments of Taenia solium tapeworms.

C) water contaminated through Diphyllobothrium latum eggs.

D) cysticerci the Taenia saginata in undercooked meat.


12) which of the following statements about staphylococcal food poisoning is FALSE?

A) it is resulted in by eating an enterotoxin.

B) It have the right to be prevent by sufficient refrigeration of food.

C) It have the right to be impede by heating foods items to 50°C for 15 minutes.


13) The most common cause of traveler"s diarrhea is

A) Shigella spp.

B) Salmonella enterica.

C) Giardia lamblia.

D) Escherichia coli.


14) Acute gastroenteritis the occurs after ~ an incubation duration of two to three days and also commonly affects children is probably brought about by

A) Giardia.

B) rotavirus.

C) Salmonella.


15) which of the following is mismatched?

A) hydatid condition — human beings are the definitive host

B) Taenia infestation — human beings are the definitive host

C) trichinellosis — humans eat larva of parasite


16) Thorough food preparation of food will certainly prevent every one of the following EXCEPT

A) trichinellosis.

B) beef tapeworm.

C) staphylococcal food poisoning.


17) many of the typical microbiota the the digestive device are found in the

A) mouth.

B) stomach.

C) stomach and small intestine.

D) tiny intestine and huge intestine.


18) Gums bleeding while to brush one"s this is many commonly associated with

A) halitosis.

B) cavities.

C) gingivitis.


19) Typhoid heat differs native salmonellosis in that in typhoid fever

A) the microbe multiply within macrophages.

B) the incubation period is much longer.

C) the symptoms are as result of infection the the gallbladder.


20) i beg your pardon of the complying with organisms is most likely to be transmitted via contaminated shrimp?

A) Trichinella spiralis

B) Vibrio parahaemolyticus

C) Giardia lamblia


21) i beg your pardon of the adhering to organisms is likely to be transmitted via undercooked pork and also horse?

A) Salmonella enterica

B) Staphylococcus aureus

C) Trichinella spiralis


22) A vaccine to provide active immunity to HBV is prepared from

A) viruses grown in organization culture.

B) gene modified yeast.

C) pooled gamma globulin.


23) Aflatoxin is a(n) ________ associated with sloop down of contaminated ________.

A) mycotoxin; peanuts

B) mycotoxin; rye or other cereal grains

C) enterotoxin; peanuts


24) which of the following causes inflammation of the liver?

A) Salmonella enterica

B) Shigella spp.

C) hepatitis A virus


26) Epidemics regarded bacterial epidemic of the digestive device are commonly caused by

A) organic vectors.

B) contaminated food and also water.

C) unpasteurized milk.


27) many bacterial infections of the lower digestive tract room treated with

A) antitoxin.

B) penicillin.

C) water and electrolytes.


29) which of the adhering to is mismatched?

A) ergot — gangrene

B) Salmonella endotoxin — lyses red blood cells

C) Vibrio enterotoxin — secretion of Cl-, K+, and also H2O


30) bacter intoxications different from bacterial infections the the digestive system in the intoxications

A) are transmitted via contaminated water.

B) are more severe.

C) have shorter incubation times.


31) The most usual mode the HAV infection is

A) air pollution of food during preparation.

B) contamination of food before it get a food service establishment.

C) blood transfusion.


32) i beg your pardon of the adhering to correctly lists the stages of this decay?

A) plaque accumulation, destruction of enamel, development of decay through enamel, decay in dentin, decay in tooth pulp

B) decay in dentin, plaque accumulation, damage of enamel, advancement of decay through enamel, degeneration in this pulp

C) plaque accumulation, devastation of enamel, decay in tooth pulp, development of degeneration through enamel, decay in dentin


33) A 38-year-old man had actually onset the fever, chills, nausea, and also myalgia while vacationing on the Gulf of Mexico. ~ above April 29, that had eaten raw oysters and also gone wading in the warm coastal waters. On may 2, he to be admitted to a hospital because of a fever of 39°C and also two circular necrotic lesions ~ above the left leg. He had a background of alcoholic liver disease. He was transferred to the ICU; therapy with antibiotics was initiated. On may 4, he died. Which of the complying with is the most likely cause?

A) Bacillus cereus

B) Cyclospora cayetanensis

C) Salmonella typhi

D) Vibrio vulnificus


D


34

34) i beg your pardon of the complying with is included in GALT?

A) thymus

B) Peyer"s patches

C) tonsils


B


35

35) microscope examination the a patient"s fecal culture shows spiral bacteria. The bacteria most likely belong to the genus

A) Campylobacter jejuni.

B) Escherichia coli.

C) Salmonella typhi.


A


36

36) which of the following involves typhoid fever?

A) it is obtained via gulp down of contaminated meat.

B) Enterotoxin diffusion via the blood.

C) that is caused by several different varieties of Salmonella.

D) Causative pathogen multiplies in patient phagocytes.


D


37

37) all of the complying with are gram-negative rods that reason gastroenteritis EXCEPT

A) Clostridium perfringens.

B) Escherichia coli.

C) Salmonella typhi.


A


38

38) Helicobacter pylori can thrive in the stomach because it

A) hides in macrophages.

B) renders a capsule.

C) own an enzyme the neutralizes HCl.


C


39

39) all of the adhering to are eukaryotic organisms that reason diarrheal disease EXCEPT

A) Cryptosporidium.

B) Cyclospora.

C) Entamoeba.

D) Giardia.

E) Campylobacter.


E


40

40) every one of the adhering to pertain to pinworm epidemic EXCEPT

A) infection is generally by call with fomites or inhalation of eggs.

B) diagnosis is through detecting egg on transparent ice pressed come the perianal area.

C) all family members members living with the patient must additionally be treated.

D) the is most frequently transmitted through cysts in water.


D


41

41) What is a Dane particle?

A) the chlorine-resistant virus that causes HAV

B) the contagious virion that reasons HBV

C) the spherical particles discovered in serum of patients with HBV


B


42

42) i beg your pardon of the adhering to is mismatched?

A) beef — E. Coli O157:H7

B) custard and also cream pies Staphylococcus aureus

C) eggs — Trichinella spiralis


C


43

Following a county fair, 160 persons complained of cradle symptoms. Symptoms included diarrhea (84 percent), abdominal muscle cramps (96 percent), nausea (84 percent), vomiting (82 percent), human body aches (50 percent), heat (60 percent; median body temperature = 38.3°C); median duration of disease 6 job (range 10 hr come 13 days).

43) In case 25.1, fecal samples must be cultured for all of the adhering to EXCEPT

A) Salmonella enterica.

B) Shigella spp.

C) Campylobacter jejuni.

D) enteropathogenic Escherichia coli.

E) Giardia lamblia.


E


44

44) In case 25.1, fecal samples were uncovered to be an adverse when cultured. The next step in diagnosing the reason of disease would be

A) to start antibiotic therapy.

B) blood cultures.

C) microscopic examination of feces for oocysts.


C


45
*

45) The relative dangers shown in Table 25.1 to be calculated for foodstuffs suspected the transmitting Salmonella. Which food is the most likely resource of infection?

A) black color beans

B) corn soup

C) jalapeño peppers


C


46

1) Campylobacter gastroenteritis is the leading cause of foodborne condition in the unified States.


TRUE


47

2) dental caries can additionally be described as periodontal disease.


FALSE


48

3) bacter infections, but not intoxications, can cause diarrhea.


FALSE


49

4) an outbreak of famous gastroenteritis occurs in a pediatrics ward. Rotavirus is the most likely causative agent.


TRUE


50

5) Aflatoxin poisoning is connected with liver cancer.


TRUE


51

6) approximately 30 percent the the body"s immune mechanism is situated in the minister tract.


FALSE


52

7) Lactic acid, an end product of fructose fermentation, causes failure of tooth enamel and, eventually, cavities.


TRUE


53

8) Gastroenteritis because of ingestion that food contaminated v Staphylococcus aureus is because of intoxication by enterotoxins.


TRUE


54

9) EHEC is a significant cause of diarrhea in developing countries and also may an outcome in the fatality of small children.

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FALSE


55

10) H. Pylori is able to survive the acidic environment of the stomach as a an outcome of adaptations that allow it to increase the pH that the prompt environment.