Infectious Diseases

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1. Clostridium perfringens

Explanation

Gram (+) anaerobic spore-forming rod (colon)

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Infectious Disease Quizzes & Trivia

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2. Corynebacterium diphtheriae

Explanation

Gram (+) aerobic rod (conjunctiva, mouth and nose, urogenital tract)

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3. Staphylococcus aureus

Explanation

Gram (+) facultative anaerobic spherical clusters (skin/nail, conjunctiva, mouth and nose, urogenital, GI = everywhere)

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4. Staphylococcus epidermidis

Explanation

Gram (+) facultative anaerobic (primarily aerobic) spherical clusters (skin/nails, conjunctiva, mouth and nose, everywhere else)

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5. Streptococcus pneumoniae

Explanation

Gram (+) facultative anaerobic spherical pairs and chains (pretty much everywhere, except maybe GI)
Otitis Media = earaches

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6. Streptococcus pyogenes

Explanation

Gram (+) facultative anaerobic spherical pairs and chains (skin/nails, conjunctiva, urogenital); Group A

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7. Streptococcus viridans

Explanation

Gram (+) facultative anaerobic spherical pairs or clusters (mouth and nose, GI tract), not very pathogenic but can cause subacute endocarditis in people with damaged heart valves, necrotizing fascitis

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8. Streptococcus mutans

Explanation

Gram (+) facultative anaerobic spherical pairs or clusters (mouth)

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9. Skin/Nails

Explanation

Few Gram negative bacteria

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10. Conjunctiva

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11. Bordetella pertussis

Explanation

Gram (-) aerobic coccobaccillus; aka Whopping cough

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12. Escherichia coli

Explanation

Gram (-) facultative anaerobic enteric rod (enterobacteriacae)

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13. Haemohillus influenzae

Explanation

Gram (-) facultative anaerobic coccobacilli; epiglottitis, sinusitis, otitis media), found naturally in upper respiratory tract

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14. Helibacter pylori

Explanation

Gram (-) microaerophilic helical rod (curved) found in stomach

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15. Klebsiella oxytoca

Explanation

Gram (-) facultative anaerobic rod; enterobacteriaceae, so throughout gut

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16. Klebsiella pneumoniae

Explanation

Gram (-) facultative anaerobic rod; enterobacteriaceae, so throughout gut

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17. Legionella pneumonophilia

Explanation

Gram (-) aerobic coccobacillus

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18. Neisseria gonorrhaeae

Explanation

Gram (-) aerobic spheres; septic arthritis also called septic joint (mouth and nose)

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19. Pseudomonas aeruginosa

Explanation

Gram (-) aerobic rod, very persistent

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20. Salmonella typhi

Explanation

Gram (-) enteric rod (facultative anaerobe) (enterobacteriaceae)

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21. Shigella sonnei

Explanation

Gram (-) enteric rod (facultative anaerobe) (enterobacteriaceae), aka Shigellosis

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22. Shigella dysentariae

Explanation

Gram (-) enteric rod (facultative anaerobe) (enterobacteriaceae), aka Shigellosis

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23. Enterobacteriaceae

Explanation

Gram (-) enteric rods; facultative anaerobes (primarily aerobes), reduce nitrate to nitrite or nitrogen; ferment D-glucose with gas and (often) produce gas

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24. Mouth and nose (upper respiratory)

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25. Urogenital tract

Explanation

Bacteroides (e.g. fragilis) are gram (-) anaerobic non-enteric rods

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26. Chlamydophila pneumoniae

Explanation

Obligate intracellular

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27. Chlamydia trachomatis

Explanation

Obligate intracellular

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28. Borrelia burgdorferi

Explanation

Spirochete; anaerobic

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29. Mycobacterium avian complex (MAC)

Explanation

AFB, lungs, resident

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30. Mycobacterium leprae

Explanation

AFB

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31. Cryptococcus neoformans

Explanation

Fungus; immunocompromised hosts, yeast

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32. Blastomyces spp.

Explanation

Fungus; geographic variation, dimorphic

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33. Histoplasma spp.

Explanation

fungus; geographical variation, dimorphic

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34. Coccidioides immitis

Explanation

fungus; geographical variation, dimorphic

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35. Aspergillus spp.

Explanation

Fungi; immunocompromised hosts, found normally in mouth and nose, A. terreus, mold (only mold)

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36. Epidermophyton spp.

Explanation

Fungi; similar infections of the nail, beard, skin, and scalp, dermatophyte

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37. Microsprorum spp.

Explanation

Fungi; similar infections of the nail, beard, skin, and scalp, dermatophyte

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38. Trichophyton spp.

Explanation

Fungi; similar infections of the nail, beard, skin, and scalp, dermatophyte

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39. Malassezia spp.

Explanation

Fungi, dermatophyte?

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40. Entamoeba histolytica

Explanation

Protozoan, ameba

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41. Giardia lamblia

Explanation

Protozoan, flagellate

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42. Trichomonas vaginalis

Explanation

Protozoan; aka vulvovaginitis, flagellate

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43. Plasmodium falciparum

Explanation

Protozoan, sporozoan

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44. Plasmodium malariae

Explanation

Protozoan, sporozoan

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45. Plasmodium ovale

Explanation

Protozoan, sporozoan

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46. Pneumocystis jiroveci

Explanation

Previously erroneously classified as a protozoan, now recognized as a fungus; aka PCP, more common in immunocompromised hosts, resident

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47. Toxoplasma gondii

Explanation

Protozoa, more common in immunocompromised hosts, resident, sporozoan

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48. Intestinal tract

Explanation

Enterococcus was formerly group D strep, clostridium in colon, helicobacter pylori in stomach, remember bacteroides is anaerobic, hence found in lower gut

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49. Herpes simplex virus Type 1 (HSV-1)

Explanation

DNA

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50. Epstein Barr virus (EBV, HSV-4)

Explanation

DNA

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51. Cytomegalovirus (CMV, HSV-5)

Explanation

Unoticed in many healthy people but serious in immunocompromised

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52. Human herpes virus 8

Explanation

DNA; associated with AIDS

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53. Hepatitis B virus

Explanation

DNA, liver disease

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54. Human Papillomavirus

Explanation

DNA, can lead to cervical cancer

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55. Common cold

Explanation

all RNA

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56. Rhinoviruses

Explanation

RNA

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57. Parainfluenza virus

Explanation

RNA

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58. Respiratory syncytial virus (RSV)

Explanation

RNA

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59. Coronavirus

Explanation

RNA

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60. Viral pneumonia

Explanation

All RNA except Adenovirus

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61. Bacterial pneumonia

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62. Other pneumonia

Explanation

PCP, actually fungal

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63. Meningitis

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64. Hepatitis A

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65. Hepatitis C

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66. Trematode

Explanation

helminths

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67. Cestodes

Explanation

helminths

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68. Nematode

Explanation

helminths

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69. Neonates

Explanation

Group B

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70. Group D Strep

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71. Enterococcus spp.

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72. Listeria monocytogenes

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73. Acinetobacter baumannii

Explanation

Nosocomial infections/tough drug resistance

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74. Bacillus anthracis

Explanation

Gram (+) aerobic spore-forming rod

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75. Clostridium botunlinum

Explanation

Gram (+) anaerobic spore-forming rod (soil)

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76. Clostridium difficile

Explanation

Gram (+) anaerobic spore-forming rod (colon)

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77. Mycobacterium tuberculosis

Explanation

AFB

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78. Clostridium tetani

Explanation

Lockjaw; Gram (+) anaerobic spore-forming rod (soil)

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79. Neisseria meningitidis

Explanation

Gram (-) aerobic spheres (mouth and nose)

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80. Mycoplasma pneumoniae

Explanation

No cell wall

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81. Candida albicans, other spp.

Explanation

Fungi, pretty much everywhere; yeast, candida albicans, candida glabrata, candida krusei

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82. Plasmodium vivax

Explanation

Protozoan, sporozoan

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83. Herpes simplex virus Type 2 (HSV-2)

Explanation

DNA

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84. Varicella Zoster Virus (VZV; Herpes Zoster virus; HSV-3)

Explanation

DNA

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Clostridium perfringens
Corynebacterium diphtheriae
Staphylococcus aureus
Staphylococcus epidermidis
Streptococcus pneumoniae
Streptococcus pyogenes
Streptococcus viridans
Streptococcus mutans
Skin/Nails
Conjunctiva
Bordetella pertussis
Escherichia coli
Haemohillus influenzae
Helibacter pylori
Klebsiella oxytoca
Klebsiella pneumoniae
Legionella pneumonophilia
Neisseria gonorrhaeae
Pseudomonas aeruginosa
Salmonella typhi
Shigella sonnei
Shigella dysentariae
Enterobacteriaceae
Mouth and nose (upper respiratory)
Urogenital tract
Chlamydophila pneumoniae
Chlamydia trachomatis
Borrelia burgdorferi
Mycobacterium avian complex (MAC)
Mycobacterium leprae
Cryptococcus neoformans
Blastomyces spp.
Histoplasma spp.
Coccidioides immitis
Aspergillus spp.
Epidermophyton spp.
Microsprorum spp.
Trichophyton spp.
Malassezia spp.
Entamoeba histolytica
Giardia lamblia
Trichomonas vaginalis
Plasmodium falciparum
Plasmodium malariae
Plasmodium ovale
Pneumocystis jiroveci
Toxoplasma gondii
Intestinal tract
Herpes simplex virus Type 1 (HSV-1)
Epstein Barr virus (EBV, HSV-4)
Cytomegalovirus (CMV, HSV-5)
Human herpes virus 8
Hepatitis B virus
Human Papillomavirus
Common cold
Rhinoviruses
Parainfluenza virus
Respiratory syncytial virus (RSV)
Coronavirus
Viral pneumonia
Bacterial pneumonia
Other pneumonia
Meningitis
Hepatitis A
Hepatitis C
Trematode
Cestodes
Nematode
Neonates
Group D Strep
Enterococcus spp.
Listeria monocytogenes
Acinetobacter baumannii
Bacillus anthracis
Clostridium botunlinum
Clostridium difficile
Mycobacterium tuberculosis
Clostridium tetani
Neisseria meningitidis
Mycoplasma pneumoniae
Candida albicans, other spp.
Plasmodium vivax
Herpes simplex virus Type 2 (HSV-2)
Varicella Zoster Virus (VZV; Herpes Zoster virus; HSV-3)
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