9 Which of the following is mismatched? a) Streptococcus pyogenes- erysipelas b)
ID: 135971 • Letter: 9
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9 Which of the following is mismatched? a) Streptococcus pyogenes- erysipelas b) Staphylococcus aureus-rheumatic heart disease c) Candida-yeast causing thrush and vaginitis d) Pseudomonas aeruginosa -hot tub folliculitis e) None of the above (All are matched correctly) he usual source of infectious microbes causing otitis media (middle ear infection) is Distant focal infections spread through the blood b) Airborne bacteria from the environment c) Normal microbiota of the middle ear d) Bacteria entering through the external ear canal e) Normal microbiota of the oropharynx (throat) 41. Which of the following pathogens can be transmitted both sexually and congenitally (to the fetus or newborn)? a) Herpes simplex virus type 2 (HSV-2) b) Human Immunodeficiency Virus (HIV) c) Neisseria gonorrhoeae d) Treponema pallidum e) All of the above can be transmitted both sexually and congenitally All of the following are true of Pneumocystis pneumonia EXCEPT a) Caused by Pneumocystis jiroveci, a yeast-like fungus b) Forms thick-walled cysts in the lungs containing intracystic bodies c) A leading cause of severe disease and death in AIDS patients d) Pneumocystis can be commonly found in the lungs of healthy people e) None of the above (all are true of Pneumocystis pneumonia) 45 46. Which of the following is NOT true about pseudomembranous colitis (antibiotic-associated diarrhea)? It occurs after antibiotic treatment for some other infection eliminates normal intestinal microbiota b) The etiologic agent, Clostridium difficile, can be acquired by feca-oral transmission c) It occurs commonly in people with a healthy immune system and no history of taking antibiotics d) It can be treated by fecal transplantation (transfer) to restore normal microbiota e) None of the above (All are true statements) 50. All of the following diseases are caused by a bacterial exotoxin EXCEPT a) Botulism b) Tetanus c) Staphylococcus aureus food poisoning d) Diphtheria e) Neisseria meningitidis (meningococcus) septic shock 48 Which of the following is NOT true about mad cow disease in cattle and Creutzfeldt-Jakob Disease (the non-genetic type) in humans? a) Represent a slow, progressive, degenerative, fatal disease of the brain b) Caused by prions, which are infectious proteins without DNA or RNA c) Brain pathology looks sponge-like ("spongiform) d) Caused by a persistent bacterial infection over several years e) None of the above (All are trueExplanation / Answer
9. Rheumatic heart disease is caused by streptococcus not staphylococcus. Hence, option b is mis matched.
10. The usual source of infectious microbes causing otitis media is normal microbiota of throat. Hence, option e is correct.
41. HIV can be transmitted through sexually as well as congenital. Hence, option b is correct.
45. Pnuemocystidis pneumonia is not found in the lungs of healthy patients. Hence, incorrect statement is d.
46. Incorrect statement about pseudomembranous colitis is it not occur in healthy patients. Incorrect statement is d.
50. Neisserua meningitis is not caused by exotoxin. Hence, incorrect statement is e.
48 . Mad cow disease is caused by prions not bacteria. Hence, incorrect statement is d.
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