Miscellaneous bacteria Flashcards
1
Q
A stain that is used to visualize Mycoplasma
A
Acridine orange
2
Q
Rickettsialpox
A
R. akari
3
Q
Boutonneuse fever
A
R. conorii
4
Q
Scrub typhus
A
R. tsutsugamushi
5
Q
Arthritis usually appears at what stage of lyme disease
A
Stage 3
6
Q
Eaton agent
A
M. pneumoniae
7
Q
Which of the following C. trachomatis serotype is capable of causing nongonococcal urethritis
A
Serotype D
8
Q
R. rickettsi falls under which group?
A
Spotted fever group
9
Q
Granulomatous lesions n syphilis appears at which stage?
A
Tertiary
10
Q
Bartonella spp. Lives on which type of cell?
A
RBC
11
Q
TWAR stain
A
C. pneumoniae
12
Q
Causative agent of murine typhus
A
R. typhi
13
Q
Rapid plasma regain is used to detect which disease
A
Syphilis
14
Q
Causative agent of relapsing fever
A
Borrelia recurrentis
15
Q
Causative agent of lyme disease
A
Borrelia burgdorferi
16
Q
Spirochaetaceae has two genus
A
- borrelia
- treponema
17
Q
Known as periplasmic flagella - responsible for motility
A
Fibrils
18
Q
Tightly coiled, thin, flexible spirochetes with hooked ends
A
Leptospira
19
Q
What is the respiratory requirement of leptospira?
A
Obligate aerobe
20
Q
What is the incubation period for leptospirosis?
A
10-12 days
21
Q
What are the principal animal reservoir?
A
Dogs, rats, and other rodents
22
Q
Mode of transmission: leptospirosis
A
- Direct contact with urine of carriers
- Indirect by contact with bodies of water contaminated with the urine of carriers
23
Q
Severe systemic disease. Includes renal failure, hepatic failure, and intravascular disease and can result in death
A
Weil disease
24
Q
What is the prophylaxis for leptospirosis?
A
Doxycycline
25
Less tightly coiled. All pathogenic species are arthropod-borne
Borrelia
26
What are the two types of relapsing fever?
- endemic relapsing fever
- epidemic relapsing fever
27
Tick-borne; ornithodoros
Endemic relapsing fever
28
Louse-borne; pediculus humanus
Epidemic relapsing fever
29
What is the specimen for borrelia and leptospira?
Blood
30
What are the stain used in borrelia?
Giemsa or Wright stained blood smear
31
Borrelia us cultivated using
Kelly medium
32
Transmitted via the bite of infected lxodes ticks
Lyme disease
33
Focus on the cardiac, musculoskeletal, neurologic system
Stage 3 or late manifestation or late persistent infections
34
exhibit erythema migrans classic skin lesion that is normally found at the site of the tick bite
Stage 1
35
Secondary skin lesions, migratory joint and bone pain, alarming neurologic and cardiac pathology, splenomegalt, severe malaise and fatigue
Stage 2 or early disseminated
36
It begins as a red macule and expands to form large annular erythema with partial central clearing
Stage 1
37
Tightly twisted spiral bacteria. Difficult to visualize using bright field microscope
Treponema
38
Culturable
Leptospira
39
Stain easily and can visualize using bright field microscope
Borrelia
40
Pinta
Treponema carateum
41
Yaws
T. pallidum subsp. pertenue
42
Endemic syphilis (bejel)
Treponema pallidum subsp. endemicum
43
Syphilis
Treponema pallidum subsp. pallidum
44
What is the mode of transmission in treponema?
Direct sexual contact
45
Artificial medium used in leptospira
- Fletcher’s semisolid
- Stuart liquid
- Ellinghausen-McCullough-Johnson-Harris semisolid media or EMJH
46
Leptospira can be visualize using
Dark field, phase contrast, and immunofluorescent microscopy
47
Nongenital contact with a lesion
On the lip
48
Transplacental transmission
Transmission to fetus (CONGENITAL SYPHILIS)
49
Manifested by skin lesion known as hard chancre.
Single erythematous lesion that is nontender but firm, with a clean surface and raised border
Primary stage of syphilis
50
Condyloma lata - macular, papular, follicular, papulosquamous
Seconda stage of syphilis
51
Asymptomatic stage
2 years to 40 years
Latent state (inactive stage)
52
Development of granulomatous lesions - gummas
Fatal
Tertiary stage of syphilis (late syphilis)
53
What are the four serological tests
- RPR - rapud plasma reagin
- VDRL - venereal disease research laboratory
- FTA-ABS test
- Hemagglutinin test
54
Commonly used serological test
RPR - rapid plasma reagin
55
Primary method used for the laboratory diagnosis of syphilis
SEROLOGY
56
Smallest self-replicating organisms in nature.
Mycoplasma
57
Mycoplasma is resistant to which antibiotic?
Penicillin and cephalosporin
58
Which organisms are rapid growing?
Mycoplasma hominis and Ureaplasma spp
59
Which specie is slow growing organism?
Mycoplasma pneumoniae
60
Colonies wity slightly raised centers giving the classic fried egg appearance
Mycoplasma spp
61
What are the mode of transmission of mycoplasma?
- direct sexual contact
- vertical transmission
- respiratory secretions or fomites
62
Requires urea
Ureaplasma
63
Requires glucose
Mycoplasma pneumoniae and mycoplasma genitalium
64
Requires arginine
Mycoplasma hominis
65
Also known as pleuropneumonia like organism
Mycoplasma pneumoniae
66
Other term for mycoplasma pneumoniae
Walking pneumoniae of asymptomatic pneumoniae
67
Causes non-gonococcal urethritis or vaginitis
Mycoplasma hominis and mycoplasma urealyticum
68
Can be transmitted to the ferus ar delivery and have been recovered from rhe CSF
Mycoplasma hominis and mycoplasma urealyticum
69
Only species that can grow on SBA and CAP
Mycoplasma hominis
70
Ability to metabolize urea to form ammonia
Mycoplasma urealyticum
71
Colonies of chlamydia remains
Colorless
72
Causing trachoma. Eye infection that can lead to blindness
Serotype A, B, C
73
Vaginitis nongonococcal urethritis, epididymitus and prostatitis.
Also causes conjunctivitis
Serotype D to K
74
Risk favtor for Guillain-Barre syndrome
Chlamydophila pneumoniae
75
What test is used to differentiate chlamydophila trachomatis?
Sulfonamide susceptibility test
76
What is susceptible in sulfonamide susceptibility test?
Chlamydophila psittaci
77
Causative agent for psittacosis
Chlamydophila psittaci
78
Chlamydophila psittaci also known as
Ornithosis or parrot fever
79
What are the three groups of rickettsia?
- typhus group
- spotted fever group
- transituonal group
80
Which species are the members of typhus group?
- ricketssia prowazekii and ricketssia typhi
81
Which species are the members of spotted fever group?
- rickettsia rickettsii,
- rickettsia conorii
- rickettsia africae
82
Which species are the members of transitional group?
- rickettsia akari
- rickettsia australis
- rickettsia felis
83
What is the vector in murine typhus?
Oriental rat flea or xenopsylla cheopis
84
Causative agent of Epidemic louse-borne typhus
Rickettsia prowazekii
85
Vector of louse borne typhus
Human louse (pediculus humanus), squirrel flea (orchopeas howardii), and squirrel louse (neohaematopinus sciuriopteri)
86
Boutonneuse Fever also known as
Mediterranean spotted fever
87
What is the vector of Rickettsialpox
Mouse mite (Liponyssoides
sanguineus)
88
What is the vector of orienta tsutsugamushi
Chigger (Leptotrombidium deliensis)
89
Causes Human granulocytotropic anaplasmosis
Anaplasma phagocytophilum
90
Vector of human granulocytotrophic anaplasmosis
Western black-legged tick and deer tick
91
exhibit a “twitching motility” in wet mounts
Bartonella bacilliformis and Bartonella benselae
92
Trench Fever
B. quintana
93
Cat Scratch Disease
B. benselae
94
Infective Endocarditis
B. elizabethae
95
Oroya Fever (Chronic Verruga
Peruana) and Febrile Acute Hemolytic
Anemia
B. bacilliformis
96
Cat Scratch Disease (secondary
agent)
B. clarridgeiae
97
Causative agent of Q (Query) Fever – a systemic
infection of the lungs
Coxiella burnetti
98
Potential bioterrorism agent
Coxiella burnetti
99
They multiply in the phagosome of the host leukocytes
Ehrlichia
100
Presence of intravacuolar microcolony that
resembles “mulberries” or a morula
Ehrlichia
101
detection of morulae during the febrile
stage of Ehrlichiosis
Giemsa stain
102
used
for the cultivation of B. bacilliformis
Columbia blood agar with 5% defibrinated blood
103
gold standard serologic test or reference method for Rickettsioses and Q fever
Indirect immunofluorescent antibody (IFA)
assay
104
presumptive test for
Rickettsioses
Weil-Felix Reaction
105
excellent
sensitivity for detecting antibodies to Rickettsia;
early diagnosis of RMSF
Microimmunofluorescent dot test
106
It is the only test that is performed for the diagnosis of
rickettsial diseases
SEROLOGICAL TESTS
