2013 micro Flashcards
How is brucellosis acquired?
A. Contaminated blood
B. Oral route
C. breast milk
B. Oral route
Which bordetella toxin inhibits cilia movement?
A. Filamentous haemagglutinin
B. Tracheal cytotoxin
C. Pertussis toxin
B. Tracheal cytotoxin
Kaposi’s sarcoma is caused by which of the following?
A. HH7
B. HH6
C. HH8
C. HH8
human herpes virus 8
Which of the following is the vector for lassa virus?
A. Mosquito
B. Rodents
B. Rodents
Which of the following is true about corynebacteria dephteriae? A. Toxin-mediated B. Gram-negative C. Motile D. Capsulated
A. Toxin-mediated
Which is most likely linked to septicemia caused by pseuodomonas aeruginosa?
A. Malignancy
B. Ecthyma gangrenosum
A. Malignancy
(Ecthyma gangrenosum is linked to pseudomonas but it is a skin-soft tissue infection
Which is true about salmonella?
A. Anaerobe non-lactose fermenter
B. Facultative anaerobe non-lactose fermenter
C. Strict aerobe non-lactose fermenter
B. Facultative anaerobe non-lactose fermenter
Which of the following causes swollen lymph nodes at the site of the flea bite?
A. Yersinia pestis
B. Klebsiella aerogenes
C. Yersinia pseudotuberculosis
A. Yersinia pestis
Antigens of which of the following organisms are used in Weil Felix test? A. klebsiella B. proteus mirabilis C. E.coli D. proteus vulgaris
D. proteus vulgaris
Which of the following is the reservoir for leptospira icterohaemorrhagiae?
A. Dogs
B. Pigs
C. Rats
C. Rats
A 3-year old child got meningitis because of gram-negative diplococci; which of the following vaccines did he probably missed?
A. Meningococcal conjugate vaccine
B. Pneumococcal conjugate vaccine
A. Meningococcal conjugate vaccine
against N. meningitis
Which of the following is the major constituent of gram-positive cell wall?
A. Peptidoglycan
B. Teichoic acid
A. Peptidoglycan
its the major component, while teichoic acid is avaliable in the gram + cell wall too
What is the best way to diagnose a cyst in the right lobe of the liver?
A. Serology for specific antibodies
B. PCR
A. Serology for specific antibodies
What is true about HSV-2?
A. Mostly associated with orolabialdisease
B. Can only effect genital area
C. Associated with neonatal CNS diseases
C. Associated with neonatal CNS diseases (ex/ meningitis)
Which of the following causes pneumonitis in kidney transplant patients?
A. CMV
B. VZV
A. CMV
its the most common agent
Which hepatitis virus is transmitted by feco-oral route?
A. Hepatitis C
B. Hepatitis B
C. Hepatitis E
C. Hepatitis E
Which of the following indicates infectivity of active hepatitis B infection?
A. HBsAg
B. HBeAg
C. HBe-Antibody
B. HBeAg
Which bacteria cause hemolytic uremic syndrome?
A. H. pylori
B. Campylobacter jejnuni
B. Campylobacter jejnuni
Which of the following causes latent infection?
A- Cholera
B- Mycobacterium tuberculosis
B- Mycobacterium tuberculosis
Which of the following contributes to acid fastness by Mycobacterium tuberculosis?
A. Peptidoglycan
B. Mycolic acid
C. alpha toxin
B. Mycolic acid
Which of the following forms endospores?
A. Clostridium botulinum
B. Clostridium difficile
C. Clostridium tetani
A. Clostridium botulinum
Which of the following is a predisposing factor to get clostridium difficile infection?
A. Hospitalization in geriatric ward
B. Taking antibiotics
C. A and B
C
Which serogroup of N. meningitides causes epidemic meningitis in Africa? A. A B. B C. C D. W-135
serogroup A
Which of the following contributes to persistence of s. aureus on foreign bodies?
A. Lipoteichoic acid
B. Peptidoglycan
C. Extracellar polysaccharides
C. Extracellar polysaccharides
What is true about mumps?
A. Can be prevented by a vaccine
B. Spread by sexual intercourse
C. Always symptomatic
A. Can be prevented by a vaccine
What is the combination of HA & NA in bird flu 2004-2007 pandemic? A. H3N1 B. H2N2 C. H3N2 D. H5N1 E. H1N1
D. H5N1
Someone was tested positive in ELISA test for HIV; what is the next step in the diagnosis?
A. Confirmatory test
B. Start immediate treatment
A. Confirmatory test
A 6 year old child presented with meningitis. Gram staining of the CSF showed gram positive coccobacilli; what is the causative agent?
A. Legionella
B. Heamophilus influenza
C. H. ducreyi
B. Heamophilus influenza
Which of the following causes ophthalmia neonatorum?
A. H. aegypticus
B. S. Aureus
C. Chlamydia trachomatis
C. Chlamydia trachomatis
What causes severe community acquired pneumonia?
Streptococcus pneumonia
Which of the following causes condyloma accuminata?
A. Adenovirus
B. HPV
C. Enterovirus
HPV
Which virus causes acute respiratory disease?
A. Enterovirus
B. HPV
C. adenovirus
adenovirus
What is a characteristic of listeria monocytogenes?
A. Extracellular parasite
B. Tumbling motility
Tumbling motility
What makes someone more susceptible to acquire HIV infection?
A. Being in normal contact w/an HIV + person
B. Blood transfusion from unscreened donor
B. Blood transfusion from unscreened donor
Which stage of schistosoma causes the primary pathology in the urinary infection?
A. Larvae
B. Ova
B. Ova
Where do cutaneous leshmanial parasites stay?
A. RBC
B. Hepatocytes
C. Macrophages
C. Macrophages
What stage of plasmodium vivax stays in the liver during a relapse?
A. Sporozoites
B. Merozoites
C. Hypnozoites
C. Hypnozoites
Which of the following is a component of the fungal cell wall?
A. Peptidoglycan
B. Glucan and chithin
C. Cholesterol and ergosterol
B. Glucan and chithin
Which method is used to diagnose acute filarial infection?
A. Microscopy of lymphatics
B. Microscopy of nucleopore filtered blood
C. Microscopy of thin and thick blood
D. Serology for antibody detection
B. Microscopy of nucleopore filtered blood
What virus causes myocarditis?
Coxsackie B
Which fungus is endemic in southeast Asia? A. Aspergillus B. Histoplasma capsulatum C. Coccidiodis immitis D. Talaromyces marnefii
D. Talaromyces marnefii
talaromyces= penicillium
Aspergillosis is acquired by inhalation of which of the following? A. Arthroconidia B. Blastoconidia C. Sporangiospores D. Conidia
D. conidia
Which of the following produces branched septate hyphae?
Aspergillus flavus
Which of the following causes severe community-acquired pneumonia?
A. Chlamydia pneumoniae
B. Streptococcus pneumonia
B. Streptococcus pneumonia
What is the initial site of lesion in giardiasis?
Duodenum