G. Pfyffer

Publications128
h-index41
Citations5,542
Highly Influential Citations256
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Mycobacterium: General Characteristics, Laboratory Detection, and Staining Procedures*
This chapter deals with Mycobacterium the only genus in the family Mycobacteriaceae and related to other mycolic acid-containing genera. The genus Mycobacterium includes obligate pathogens,… Expand
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Mycobacterium bovis Isolates from Tuberculous Lesions in Chadian Zebu Carcasses
This slaughterhouse study in Chad shows higher proportions of Mycobacterium bovis isolates among Mbororo than Arabe zebu cattle. Spoligotyping shows a homogenetic population structure for M. bovis… Expand
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Mycobacterium avium subspecies paratuberculosis and Crohn's disease: a systematic review and meta-analysis.
This systematic review assesses the evidence for an association between Mycobacterium avium subspecies paratuberculosis (MAP) and Crohn's disease. We analysed 28 case-control studies comparing MAP in… Expand
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Mycobacterium wolinskyi sp. nov. and Mycobacterium goodii sp. nov., two new rapidly growing species related to Mycobacterium smegmatis and associated with human wound infections: a cooperative study…
Previous investigations demonstrated three taxonomic groups among 22 clinical isolates of Mycobacterium smegmatis. These studies were expanded to 71 clinical isolates, of which 35 (49%) (group 1)… Expand
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Comparison of the Mycobacteria Growth Indicator Tube (MGIT) with radiometric and solid culture for recovery of acid-fast bacilli.
In a multicenter study involving three reference centers for mycobacteria, the rate of recovery of acid-fast bacilli (AFB) and the mean time to their detection from clinical specimens was determined… Expand
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Clinical Implications of Mycobacterium kansasii Species Heterogeneity: Swiss National Survey
ABSTRACT Several subtypes of Mycobacterium kansasii have been described, but their respective pathogenic roles are not clear. This study investigated the distribution of subtypes and the… Expand
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Multicenter Laboratory Validation of the BACTEC MGIT 960 Technique for Testing Susceptibilities of Mycobacterium tuberculosis to Classical Second-Line Drugs and Newer Antimicrobials
ABSTRACT The BACTEC MGIT 960 system, a fully automated, nonradiometric, noninvasive system for detection and drug susceptibility testing of mycobacteria, was evaluated for the ability to test… Expand
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The role of clinical suspicion in evaluating a new diagnostic test for active tuberculosis: results of a multicenter prospective trial.
CONTEXT In laboratory trials, nucleic acid amplification tests for the diagnosis of tuberculosis (TB) are more accurate than acid-fast bacilli (AFB) smear microscopy and are faster than culture. The… Expand
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Emergence of SCCmec Type IV and SCCmec Type V Methicillin-Resistant Staphylococcus aureus Containing the Panton-Valentine Leukocidin Genes in a Large Academic Teaching Hospital in Central…
ABSTRACT The hospital epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) has changed in the past few years due to the encroachment of community-associated MRSA (CA-MRSA) strains into… Expand
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Multicenter Evaluation of Fully Automated BACTEC Mycobacteria Growth Indicator Tube 960 System for Susceptibility Testing of Mycobacterium tuberculosis
ABSTRACT The reliability of the BACTEC Mycobacteria Growth Indicator Tube (MGIT) 960 system for testing of Mycobacterium tuberculosis susceptibility to the three front-line drugs (isoniazid [INH],… Expand
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