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Microscopy
Recent studies from Jimma University add new data to microscopy
June 17th, 2008
According to a study from Jimma, Ethiopia, "An experimental comparative study was conducted in order to compare the positivity pattern of, sputum microscopy using the direct and overnight sedimentation Ziehl-Neelsen (ZN) smears, direct and NaOCl pretreated centrifuged ZN smears and overnight sedimentation and NaOCl pretreated centrifuged ZN smears methods. We examined 660 sputum smeared slides for the presence of acid-fast bacillus from 220 sputum samples." "Compared with the direct microscopy method, positivity increased by 91.1% after centrifugation (P < 0.001, chi(2)=18.27) and by 71.1% after overnight sedimentation (p < 0.001, chi(2)=11.61). No statistical...
Source: TB & Outbreaks Week (2008-06-17)
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