Important Human Pathogens - Microbiology - Lecture Slides, Slides of Microbiology

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Mycobacterium tuberculosis

Mycobacterium leprae (uncommon)

Mycobacterium avium-intracellulaire Complex

(MAC) or (M. avium)

Important Human Pathogens

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Photochromogenic Mycobacterium

kansasii on Middlebrook Agar

NOTE : Mycobacteria pathogenic

for humans can be differentiated

( Runyon Groups ) by:

 speed of growth (all are

slower than most other

pathogens) and by

 production of chromogenic

pigments (in light, in dark,

or none)

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Lipid-Rich Cell Wall of Mycobacterium

Mycolic acids

CMN Group:

Unusual cell wall lipids (mycolic acids,etc.) ( P urified P rotein D erivative)

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Mycobacterial Clinical Syndromes

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Mycobacterium tuberculosis

Infections (cont.)

BCG (bacille Calmette-Guerin) = attenuated M. bovis

Positive PPD + Chest X-Ray +

MDR-TB a serious global health threat

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Mycobacterium leprae Infections (cont.)

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