Apr 6, 2014
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POTENTIALLY PATHOGENIC ENVIRONMENTAL MYCOBACTERIA (PPEM)

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The atypical mycobacteria. The commonest PPEM to cause human disease is the Mycobacterium avium-intracellulare complex. PPEM differ from M. tuberculosis in their source (environmental or zoonotic), rate of growth, temperature of growth and ability to produce pigment on culture. Mostly infect immunologically compromised humans and the disease caused by some species may be clinicallyindistinguishable from true human tuberculosis.

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