598716D2092759154777A5668514 n

44. Orchitis, which may cause stcrility. is a possible manifestation of which of the foliowing?

a. Rabies h. Rhinovims

c.    Cytomegaloviru$

d.    Respiratory syncytial virus (e^Mumps

45. An experimcntal compound is discovered that prevents the activntion ot adenyl cyclasc and thc resulting increase in cycłic AMP. The toxic effects of which ot the following bacteria might be prevented with the use of (his cxperimental compound?

(a^)Vibrio cholerac bT Corynebacterium diphtiieriae

c.    Pseudomonas

d.    Listeria roonocytogenes c. Brucella

46. A patient was hospitalized after an automobile accident. The wounds becamc infected and thc paticnt was treated with tobramycin. carbenicillin. and clindamycin. Five days after antibiotic therapy was iniliated. thc patientdeveloped severe diarrhea and pseudomcmbranous entcrocolitis. Antibioticassociatod diarrhea and the morę serious pscudomembranous entcrocolitis can be caused by

a.    Clostridium sordellii

b.    Clostridium perfringens (^Clostridium difficile

d.    S. aureus

e.    13. fragifis

47. Fever of unknown origin in a farmer w ho rai sos goats would most likely be caused by which of the following organisms?

(a) Brucella melitensis

b.    Clostridium novyi

c.    T. pallidum

d.    Histoplasma copsulatum

e.    Mycobacterium tubercuiosis

48. S. aureus causes a wide variety of infections, ranging front wound inlection to pneumonia. Treatmcnt of S. aureus infection with penicillin is often complicated by the jl Inability of penicillin to penetrate the membranę of S. aureus OProduction of penicillinasc by S. aureus

c.    Production of penicillin acetylase by S. aureus

d.    Lack of penicillin binding sites on S. aureus

e.    Allergic rcaction caused by staphylococcal protein