24. E coli 0157:117 characteristics include all the following except it A. Only

Question

24. E coli 0157:117 characteristics include all the following except it A. Only causes oceupational illness in people who work with animals that are reservoirs B. Is transmitted by ingestion of contaminated, undercooked food, especially hamburger C. Causes a bloody diarrhea D. Has a reservoir of cattle intestines E. Some eases go on to hemolytic uremic syndrome (HUS) causing possible kidney failure 25. Zika virus will not affect the United States or spread among endemic mosquitos as it is a tropical diseas and is only a concen for those that travel or live in tropical areas. A. True B. False 26. Pneumovax is a vaccine for prevention of disease caused by strains of Mycoplasma pneumoniae. A. True B, False 27. Which is incorrect about warts A. Caused by human papillomaviruses (HPV) B. Are transmitted by direct contact or fomites C. The etiological agent cannot be treated pharmaceutically D. Are frequently cancerous E. Freezing, tape and surgery can be used for removal 28. Which of the following is associated only with acute endocarditis, but not with subacute endocard A. Occurs primarily in patients that have prior heart damage B. Caused by immune system autoantibodies that attack beart and valve tissue C. Can be caused by oral bacteria entering the bloodstream during dental procedures D. Requires a large bloodstream challenge of bacteria, most commonly Staphylococcus aureuS E. Signs and symptoms include fever, heart murmur and possible emboli 29. Which of the following is correct about Yersinia pestis? A. Was virulent in the Middle Ages, however it is no longer virulent B. Has humans as an endemic reservoir C. Does not respond to antimicrobial drugs D. Is usually transmitted by a flea vector E. Is only found in the Midwest United States Formation of a pseudomembrane in the back of the throat is characteristically seen in which d childhood disease: 30. c. diphtheria d. Haemophilus influenzae a. rubella b. measles

Explanation / Answer

24. Option A is the right answer. The first option is not included in the characteristic of E.coli O157:H7.

E. coli O157:H7 is one of the type of Shigatoxin producing E. coli. It causes diseases by consumption of contaminated food and milk etc which are generally of colonic escherichiosis type.

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