Table 1.
Prevalences of cultivable bacteria in nasal specimens from medical students in China.
| Bacteriological classification | Number of isolates | Prevalence |
|---|---|---|
| Gram-positive | ||
| Staphylococcus aureus | 41 | 25.5% |
| Staphylococcus epidermidis | 150 | 93.1% |
| Staphylococcus haemolyticus | 8 | 5.0% |
| Staphylococcus cohnii | 4 | 2.5% |
| Staphylococcus capitis | 4 | 2.5% |
| Streptococcus pneumoniae | 1 | 0.6% |
| Streptococcus mitis | 4 | 2.5% |
| Corynebacterium accolens | 151 | 93.8% |
| Corynebacterium pseudodiphtheriticum | 54 | 33.5% |
| Dolosigranulum pigrum | 38 | 23.6% |
| Bacillus cereus | 32 | 19.9% |
| Bacillus brevis | 1 | 0.6% |
| Micrococcus luteus | 2 | 1.2% |
| Micrococcus lylae | 1 | 0.6% |
| Gram-negative | ||
| Escherichia coli | 2 | 1.2% |
| Klebsiella pneumoniae | 13 | 8.1% |
| Klebsiella aerogenes | 13 | 8.1% |
| Klebsiella oxytoca | 2 | 1.2% |
| Serratia marcescens | 3 | 1.9% |
| Enterobacter cloacae | 2 | 1.2% |
| Citrobacter koseri | 1 | 0.6% |
| Citrobacter freudii | 3 | 1.9% |
| Citrobacter werkmanii | 1 | 0.6% |
| Pseudomonas aeruginosa | 1 | 0.6% |
| Haemophilus influenzae | 2 | 1.2% |
| Haemophilus parainfluenzae | 1 | 0.6% |
| Moraxella nonliquefaciens | 8 | 5.0% |
| Moraxella lacunata | 1 | 0.6% |
| Moraxella osloensis | 3 | 1.9% |