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Table 1 Organisms isolated from bell, diaphragm and earpieces of stethoscope

From: Bacteriological assessment of stethoscopes used by healthcare workers in a tertiary care centre of Nepal

Organisms Number of isolates
Bell Diaphragm Earpiece (left) Earpiece (right)
Micrococcus species 56 64 18 20
Coagulase negative staphylococci 16 45 11 14
Bacillus species 18 22 24 21
Diptheroids 4 6
Staphylococcus aureus (MSSA) 6 15 4
Staphylococcus aureus (MRSA) 10 11
Pseudomonas species 6
Enterobacter species 4
Escherichia coli 3
Candida species 2
Total no of isolates 110 178 53 59
 No growth on stethoscopes 51 34 48 44
 Growth on stethoscopes 71 (58.1%) 88 (72.1%) 74 (60.6%) 78 (63.9%)
  1. – not isolated