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Question 1 of 20
1. Question
Which if the following is INCORRECT regarding epidemic typhus?
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Question 2 of 20
2. Question
A 30-year-old man, who worked as a volunteer in the rescue mission during the Habagat, suddenly developed high fever, intense headache, calf pains and conjunctivitis. He came in for consult due to development of jaundice. Examination revealed impaired hepatic and renal functions. What is/are the prophylactic regimen/s that should have been given in this patient?
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Question 3 of 20
3. Question
Antibiotic-associated diarrhea is due to overgrowth of this organism. Which of the following is the correct description for this organism?
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Question 4 of 20
4. Question
A 16-year-old male living in a college dormitory suddenly developed fever, headache, neck rigidity followed by an episode of generalized seizure. CSF studies showed gram negative diplococci.
Which of the following is/are true regarding this organism?
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Question 5 of 20
5. Question
Gullain Barre syndrome has been associated with what bacterial infection?
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Question 6 of 20
6. Question
An HIV positive 30-year-old male developed cough, fever and dyspnea. Work-up showed lung abscess and sputum exam showed gram positive, aerobic filaments which are acid fast. The most probably etiologic organism is:
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Question 7 of 20
7. Question
Generalized diseases in which the virus spreads in the body through the blood stream, affecting multiple organs, include all of the following, EXCEPT:
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Question 8 of 20
8. Question
Which of the following correctly describes the only singlestranded DNA virus pathologic to humans?
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Question 9 of 20
9. Question
Candida albicans is part of the normal flora of URT, GIT and female GUT. Which of the following is true regarding this organism?
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Question 10 of 20
10. Question
A 45-year old female went to Mississippi for her vacation. 2 weeks after, she develop productive cough, with whitish phlegm. She took consult and was given antibiotic, but no relief was noted. She then developed dyspnea as cough persisted for 2 weeks. If you suspect fungi as the causative agent, which of the following is the most probable culprit?
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Question 11 of 20
11. Question
During an annual checkup, a 34-year-old engineer, asymptomatic, was found to have several cysts in his stool specimen. These cysts showed 4 nuclei with rounded chromatoid bodies. Which of the following is/are the most probable organism involved?
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Question 12 of 20
12. Question
Schistosoma japonicum is an oriental blood fluke that resides in the mesenteric and portal veins. Which of the following is its second intermediate host?
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Question 13 of 20
13. Question
Which of the following is/are true regarding pinworm?
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Question 14 of 20
14. Question
A 56-year-old man, alcoholic, was brought to your clinic due to expectoration of blood-tinged sputum. Microscopic study of the sputum revealed lancet shaped, gram positive organisms. Which of the following is the most likely causative agent?
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Question 15 of 20
15. Question
A 50-year-old abaca farmer in Samar consulted at the rural health center due to fever, cough, nocturnal wheezing, with pain and swelling of the groin and axillae. Which of the following is/are consistent with this clinical finding?
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Question 16 of 20
16. Question
A patient on chronic total parenteral nutrition (TPN) developed white patches around his chin, trunk and diffusely around his extremities. Which of the following is/are INCORRECT regarding this organism?
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Question 17 of 20
17. Question
A 63-year-old man had visited his favorite oyster restaurant near a shore. He ate two dozens of oysters. Two days later, he was admitted because of the abrupt onset of chills, fever and lightheadedness. While in the ER, he developed erythematous skin lesions, which rapidly evolved into hemorrhagic bullae and eventually ulcers. The microorganism of major concern for this patient is:
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Question 18 of 20
18. Question
An 8-year-old boy develops severe sore throat. On examination, a grayish exudate (pseudomembranes) was seen over the tonsils and pharynx. The cause of this boy’s pharyngitis is most likely:
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Question 19 of 20
19. Question
A 48-year-old HIV-positive man with CD4 count of 40 complains of progressive memory loss. Five months later, he became paralyzed and died. Autopsy revealed demyelination of many neurons and electron microscopy shows clusters of naked viral particles. What is the most likely cause of the disease?
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Question 20 of 20
20. Question
The following microorganisms may cause malignancy in human host, EXCEPT:
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