Question

1. Which one of the following diseases is most likely to be eradicated? A. syphilis B....

1. Which one of the following diseases is most likely to be eradicated? A. syphilis B. pertussis C. dracunculiasis D. varicella _____

2. Which one of the following toxins has the smallest lethal dose? A. cholera B. botulinum C. erythrogenic D. tetanus _____3. All of the following are types of exotoxins except A. superantigens B. membrane-disrupting toxin C. Lipid A D. A-B toxin _____4. All of the following are true about endotoxins except A. stimulate release of high concentrations of cytokines B. heat stable C. usually associated with gram positive bacteria D. produce fever _____5. The test employed to detect the presence of endotoxin is the A. ELISA B. limulus amoebocyte assay C. Western blotting D. serology _____6. All of the following are instrumental in nosocomial infections except A. microorganisms in the hospital B. vaccination schedule of patient C. chain of transmission D. compromised state of patient _____7. A patient is experiencing nausea, headache and vertigo. These are called the A. symptoms B. signs C. syndrome D. disease _____8. The manner which a disease progresses is called A. etiology B. infection C. virulence D. pathogenesis _____9. Which one of the following organisms will last the longest time period in the body? A. opportunistic B. normal flora C. transient D. free-living _____10. Which one of the following stages of a disease occurs first? A. prodromal B. incubation C. syndrome D. convalescence

Homework Answers

Answer #1

Answer 1- c) dracunculiasis

Reason- guinea worm disease, a drastic decresae in the cases has been reported(99.99%) to only 22 in 2015, thus it is on its way to be eradicated

Answer 2- c) erythrogenic

Reason- It releases massive amounts of host cytokines and they are all highly lethal

Answer 3- c) lipid A

Reason:- exotoxins are of three types :- superantigens (Type I toxins), exotoxins that damage host cell membranes (Type II toxins) and A-B toxins (Type III toxin)

Answer 4- d) produces fever

Reason - endotoxins are heat stable and produces high concentration of cytokines in response to inflammation. They are usually associated with gram positive bacteria.

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