TB & Outbreaks Week
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Tuberculosis
Studies from A.L. Denhertog et al further understanding of tuberculosis
May 5th, 2009
According to a study from Netherlands, "A tuberculosis (TB) research laboratory in the Netherlands. The concentration of Mycobacterium tuberculosis cells from sputum is almost universally performed by centrifugation after chemical liquefaction." "These methods are thus dependent on the effective sedimentation of mycobacterial cells, and the buoyant density of these cells relative to sputum is therefore of critical importance. We cultured M. tuberculosis in different systems and measured their buoyant density. We also calculated the centrifuge times and speeds needed to effectively pellet the mycobacteria. In contrast to earlier reports, we were unable to identify cells...
Source: TB & Outbreaks Week (2009-05-05)
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