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Microbiology 2

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Shiga toxin: Plasmid - lysogeny - bacterial chromosome?
Flavivirus
Bacterial chromosome
Enveloped - SS - - circular - helical
Loa Loa

2. Treatment for Haemophilus influenzae meningitis
Enterobius vermicularis
Ceftriaxone
Trypanosoma (T. gambiense - T. rhodiesiense); African sleeping sickness
Trichomonas vaginalis

3. HIV - Pleuritic pain - hemoptysis - infiltrates on imaging
S. pneumoniae sensitive - S. viridans resistant
Invasive aspergillosis
Nonenveloped - SS + - Icosahedral
Leishmania donovani

4. Periorbital edema
Enveloped - SS - - linear - 8 segments - Helical
CMV
Sodium stibogluconate
Trichinella spiralis

5. Shuffner dots
Praziquantel
P. vivax/ovale
Enveloped - SS+ - linear - icosahedral
Cryptococcus neoformans

6. Subacute sclerosing panencephalitis
Rubeola
Schistosoma haematobium
Stains cryptococcus neoformans red
Taenid solium

7. Cellulitis from animal bite
Trichinella spiralis
Pasteurella multocida
Fluconazole or ketoconazole
Coxackie A - syphilis - Rocky Mountain spotted fever

8. Tx for Trichomonas vaginalis
Schistosoma haematobium
Trypansoma cruzi. Chagas dz - S. America
Metronidazole
S. aureus. Binds Fc region of Ig. Prevents opsonization and phagocytosis.

9. HIV - Squamous cell carcinoma; often in anus (MSM) or cervix (females)
HPV
Trichomonas vaginalis
Watery diarrhea
Pneumocystis jiroveci

10. HTLV
Aminoglycoside plus extended spectrum penicillin (piperacillin - ticarcillin)
Retrovirus
Enveloped - SS - - circular - 2 segments - helical
S. pneumoniae sensitive - S. viridans resistant

11. Poliovirus
Cryptococcus neoformans
Picornavirus
Heart block - bilateral Bell's palsy
HPV

12. Coxackievirus
Flavivirus
Picornavirus
Onchocerca volvulus
Aseptic meningitis - herpangina - mycarditis

13. Organisms causing rash on palms and soles
Picornavirus
Pathognomonic for measles or live attenuated vaccine
Coxackie A - syphilis - Rocky Mountain spotted fever
Toxoplasma gondii

14. 'swiss cheese' appearance in brain
Aseptic meningitis - herpangina - mycarditis
Wuchereria bancrofti
Taenid solium
Group A beta - hemolytic strep (S. pyogenes) sensitive. Group B (S. agalactiae) resistant.

15. Shiga toxin
Group A beta - hemolytic strep (S. pyogenes) sensitive. Group B (S. agalactiae) resistant.
Onchocerca volvulus
Cleaves host cell rRNA (inactivates 60S ribosome); enhances cytokine release - causing HUS.
Plasmid

16. Treatment for Tinea versicolor
Topical miconazole - selenium sulfide
Enterobius vermicularis
Flavivirus
Bartonella henselae (bacillary angiomatosis)

17. Severe; daily cycles; parasitized RBCs occlude capillaries in brain - kidneys - lungs
Naegleria fowleri
Bunyavirus - hemorrhagic fever - pneumonia
P. falciparum
Taenid solium

18. Fungal infection with rhinocerebral - frontal lobe abscesses
Mucor or Rhizopus spp.
Sodium stibogluconate
Calicivirus
Palivizumab

19. Female mosquito; causes blockage of lymphatic vessels (elephantitis). Takes 9 months to 1 year after bite to get elephantiasis sx.
Flavivirus
HHV-6 (Roseola)
Pseudomonas - inactivates EF-2
Wuchereria bancrofti

20. Eaton's agar
Trichinella spiralis
HPV
Bartonella henselae (bacillary angiomatosis)
Mycoplasma pneumonia

21. Flavivirus
Trichinella spiralis
Togavirus
S. pneumoniae sensitive - S. viridans resistant
Enveloped - SS+ - linear - icosahedral

22. Rubeola
Picornavirus
Paramyxovirus
Praziquantel
Mycobacterium avium - intracellulare

23. Rhinovirus
Schistosoma mansoni
No envelope
Arenavirus - spread by mice
Picornavirus

24. Ingestion of larvae encysted in undercooked pork. Cysticercosis and neurocysticercosis - mass lesions in brain.
Invasive aspergillosis
Stains cryptococcus neoformans red
Taenid solium
Enveloped - SS + - Icosahedral

25. Tx for Echinococcus granulosus
bendazoles
Lysogeny
Ivermectin
Heart block - bilateral Bell's palsy

26. HIV - Pneumonia CD4<200
Retrovirus
Fluconazole or ketoconazole
Pneumocystis jiroveci
Cryptosporidium

27. Mucicarmine
No envelope - SS + linear - Icosahedral
Enveloped - SS + - Icosahedral
Stains cryptococcus neoformans red
P. falciparum

28. Western equine encephalitis
Ascaris lumbricoides
DS linear 10-12 segments
Togavirus
Onchocerca volvulus

29. Protein A
S. aureus. Binds Fc region of Ig. Prevents opsonization and phagocytosis.
Ascaris lumbricoides
DS linear 10-12 segments
Quinine - clindamycin

30. Protozoa: Severe diarrhea in AIDS - mild dz in non - immunocompromised
Flavivirus
Amphotericin B
Cryptosporidium
Picornavirus

31. Enlarged lymph nodes - recurring fever (d/t Ag variation) - somnolence - coma
Yellow fever
Diethylcarbamazine
Cleaves IgA. S. pneumoniae - H. influenzae type B - Neisseria (SHiN) in order to colonize respiratory mucosa.
Trypanosoma (T. gambiense - T. rhodiesiense); African sleeping sickness

32. Maltese cross in RBC
Babesia
Picornavirus
Topical miconazole - selenium sulfide
Cryptosporidium spp.

33. Food contaminated with eggs; causes granulomas (in in retina -> blindness) and visceral larva migrans
Toxoplasma gondii
Bunyavirus
Dracunculus medinensis
Toxocara canis

34. Reovirus
Aseptic meningitis - herpangina - mycarditis
No envelope
Congenital rubella
Quinine - clindamycin

35. Rotavirus
Picornavirus
Cryptosporidium spp.
Leishmania donovani
Reovirus

36. Treatment for superficial candida infection
Coxackie A - syphilis - Rocky Mountain spotted fever
No envelope - SS + linear - Icosahedral
Heart block - bilateral Bell's palsy
Nystatin

37. Botulinum exotoxin: Plasmid - lysogeny - bacterial chromosome?
Rubeola
Lysogeny
Giardia lamblia
Togavirus

38. Protozoa: Bloating - flatulence - foul - smelling - fatty diarrhea
bendazoles
Amphotericin B
Enveloped - SS + - Icosahedral
Giardia lamblia

39. Giant roundworm
bendazoles
P. falciparum
Ascaris lumbricoides
Yellow fever

40. HIV - Meningitis; India ink stain reveals narrow - based budding
Cryptococcus neoformans
Picornavirus
Enveloped - SS+ - linear - icosahedral
ADP ribosylating A- B toxin inactivates EF-2

41. Togavirus
Congenital rubella
Ascaris lumbricoides
Enveloped - SS+ - linear - icosahedral
Most common cause of aseptic meningitis

42. Severe congenital infection
Bunyavirus - hemorrhagic fever - pneumonia
Giardia lamblia
Group A streptococcus. Helps prevent phagocytosis.
Rubella

43. Pinworm
Enterobius vermicularis
Trichomonas vaginalis
Arenavirus - spread by mice
EBV

44. Orthomyxoviruses
Icosohedral (double)
Enveloped - SS - - linear - 8 segments - Helical
Trichinella spiralis
Enveloped - SS+ - linear - icosahedral

45. Larvae penetrateskin of feet; intestinal infection can cause anemia (suck blood from intestinal walls).
Ancylostoma duodenale - Necator americanus
Togavirus
Enveloped - SS - - circular - 3 segments - helical
Deltavirus

46. Tx for Trypanosoma cruzi
Ribavirin
Cleaves host cell rRNA (inactivates 60S ribosome); enhances cytokine release - causing HUS.
Nifurtimox
Schistosoma mansoni

47. Protozoa: Rapidly fatal meningoencephalitis
Naegleria fowleri
Rubeola
Stains cryptococcus neoformans red
Flavivirus

48. Dilated cardiomyopathy - megacolon - megaesophagus
P. vivax/ovale
Erythromycin
Watery diarrhea
Trypansoma cruzi. Chagas dz - S. America

49. Tx for Diphyllobothrium latum
Doxycycline - ceftriaxone
Colonic epithelial cell necrosis and stimulation of fibrin deposition
Enveloped - SS+ - linear - icosahedral
Praziquantel

50. Larvae in soil penetrate skin; lung sx; intestinal infection; causes vomiting - diarrhea - and anemia - abdominal bloating - weight loss.
Strongyloides stercoralis
Praziquantel
Itraconazole or potassium iodide
Cryptosporidium spp.