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Reducing the number of sputum samples examined and thresholds for positivity: an opportunity to optimise smear microscopy.

Abstract:

SETTING: Urban health clinic, Nairobi. OBJECTIVE: To evaluate the impact on tuberculosis (TB) case detection and laboratory workload of reducing the number of sputum smears examined and thresholds for diagnosing positive smears and positive cases. DESIGN: In this prospective study, three Ziehl-Neelsen stained sputum smears from consecutive pulmonary TB suspects were examined blind. The standard approach (A), > or = 2 positive smears out of 3, using a cut-off of 10 acid-fast bacilli (AFB)/1...

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Journal:
The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease
Volume:
11
Issue:
9
Pages:
953-958
Publication date:
2007-09-05
EISSN:
1815-7920
ISSN:
1027-3719
URN:
uuid:1cb796f5-8b6a-4920-b002-13117bb5da91
Source identifiers:
68084
Local pid:
pubs:68084

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