COMPLEXES OF MYCOBACTERIA Flashcards

1
Q

Tubercle Bacilli Complex

A

M. tuberculosis
M. bovis
M. ulcerans
M.. africanum
M. microti

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2
Q

TB in COWS
Ingestion of milk
Intestinal TB: HUMANS
Water droplet colonies
NO3 Reduction (-), Niacin (-)
T2H – Sensitive
Pyrazinamidase (-)

A

Mycobacterium bovis

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3
Q

BURROLI ULCERS
third common mycobacteria
Inert bacilli

A

M. ulcerans

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4
Q

TB in Africa

A

M. africanum

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5
Q

Atypical Mycobacteria/MOTT

A

Photochromogens (same growth at 10 - 20 days)
Scotochromogens
Non-photochromogens
Rapid Growers

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6
Q

Pigmented in the presence of light
Growth rate: 10 - 21 days

A

Photochromogens – Group I

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7
Q

CROSSBARDS BACCILI
Yellow bacillus
Shepherds Brook
2nd cause of NTB cause lung tuberculosis in AIDS px.

A

M. Kansasii

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8
Q

swimming pool granuloma

A

M. marinum

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9
Q

isolated from monkeys

A

M. simiae

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10
Q

TAP water Bacillus
Pigmented colonies in the presence of light and dark

A

Scotochromogens – Group II

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11
Q

cervical lymphadenitis in children

A

M. scrofulaceum

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12
Q

pulmonary disease similar to TB in middle-aged men

A

M. szulgai

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13
Q

RAPID GROWERS (Scotochromogens – Group II)

A

M. phlei
M. smegmatis group

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14
Q

Non-pigmented colonies in the presence of light and dark

A

Non-Photochromogens – Group III

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15
Q

Bird nest appearance

A

M. xenopi

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16
Q

RAPID GROWERS (Non-Photochromogens – Group III)

A

M. chelonae
M. fortuitum group

17
Q

Diptheroids
Weakly gram (+) rods
Growth rate: 3-5 days
M. fortuitum
M. chelonae – DPT polio vaccine
M. smegmatis

A

Rapid Growers – Group IV

18
Q

Cigar-packet arrangement
SLIT skin Smear : used
non culturable media

A

Mycobacterium leprae

19
Q

nerve leprosy, with no sensation

A

Paucibacillary

20
Q

lepromatous (malignant) sensation

A

Multibacillary

21
Q

2 types of Leprosy

A

Paucibacillary
Multibacillary

22
Q

Lepromin test
Two types of Reaction

A

Fernandez – early rxn, 1 to 2 days
Mitsuda – development of nodules 3-4 weeks