TABLE 1.
Isolate | Identity (16S rRNA) | Source | Country of origin | Etest MIC (μg/ml) ofa:
|
β-Lactamase identity | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AC | XL | CT | FX | XM | EM | TC | CM | TZ | TZ- TZL | |||||
372 | C. granulosa | Periodontitis | France | 2 | 0.032 | 32 | 0.38 | 32 | 32 | 0.094 | 256 | 1.2 | <0.064 | CfxA3e |
45 | C. sputigena | NUGb | France | >256 | 0.19 | 2 | 0.75 | >256 | 0.125 | >256 | 0.016 | 2 | <0.064 | CfxA3 |
62 | C. sputigena | Periodontitis | France | 64 | 0.125 | 4 | 1 | 32 | >256 | 1.5 | >256 | 1 | <0.064 | CfxA2e |
176 | C. sputigena | Dental abscess | France | 2 | 0.25 | 16 | 0.75 | 12 | 256 | 1.5 | >256 | 4 | 0.01 | CfxA3 |
315 | C. sputigena | Periodontitis | France | >256 | 0.25 | 8 | 1 | 64 | 0.5 | 0.5 | <0.016 | 32 | <0.064 | NDc |
456 | C. sputigena | Periodontitis | France | 24 | 0.064 | 64 | 0.38 | >256 | 0.125 | 0.125 | <0.016 | 0.5 | <0.064 | ND |
507 | C. sputigena | Periodontitis | France | 32 | 0.125 | 4 | 1 | 64 | >256 | 0.38 | >256 | 256 | <0.064 | ND |
516 | C. sputigena | Periodontitis | France | 32 | 0.125 | 32 | 1 | >256 | >256 | 0.38 | >256 | 24 | <0.064 | ND |
581 | C. sputigena | Periodontitis | France | 64 | 0.047 | 2 | 0.38 | 12 | 0.19 | 0.064 | <0.016 | 2 | <0.064 | ND |
568 | C. sputigena | Periodontitis | France | >256 | 0.25 | 4 | 0.75 | 32 | >256 | 0.19 | 256 | 3 | 0.03 | CfxA3 |
301d | C. sputigena | Periodontal lesion | U.S. | 0.19 | 0.19 | 0.125 | 0.5 | 0.25 | 0.125 | 0.19 | 0.016 | 1.5 | <0.064 | —f |
528 | C. ochracea | Periodontitis | France | >256 | 0.75 | 256 | 2 | 128 | 0.125 | 0.125 | 0.023 | 256 | <0.064 | CfxA3 |
321d | C. ochracea | Blood | France | >256 | 0.5 | 256 | 1 | >256 | 1.5 | 0.25 | 0.064 | >256 | <0.064 | CfxA3 |
595 | C. ochracea | Periodontitis | France | >256 | 0.125 | 64 | 1 | 256 | 256 | 0.38 | >256 | 256 | <0.064 | CfxA3 |
616 | C. ochracea | Periodontitis | France | >256 | 0.125 | >256 | 1 | >256 | 0.064 | 0.19 | 0.064 | 64 | <0.064 | CfxA3 |
800 | C. ochracea | Periodontitis | France | >256 | 8 | >256 | 2 | >256 | >256 | 0.38 | >256 | >256 | <0.064 | CfxA3 |
136 | C. ochracea | Periodontitis | Norway | 2 | 0.047 | 0.19 | 0.50 | 6 | 0.125 | 0.125 | <0.016 | 0.125 | <0.064 | CfxA2 |
161 | C. ochracea | Periodontitis | Norway | 2 | 0.19 | 0.25 | 0.25 | 2 | 0.125 | 0.38 | <0.016 | 0.047 | <0.064 | CfxA2 |
448d | C. ochracea | Oral cavity | U.S. | 0.25 | 0.19 | 0.19 | 0.38 | 0.5 | 0.25 | 0.125 | 0.016 | 1.5 | <0.064 | — |
140 | C. gingivalis | Dental abscess | France | >256 | 1 | 256 | 1 | >256 | 0.125 | 0.25 | 0.023 | 32 | <0.064 | CfxA3 |
8-01 | C. gingivalis | Periodontitis | U.S. | 2 | 0.064 | 3 | 2 | 32 | 0.75 | 0.25 | <0.016 | 1.5 | <0.064 | CfxA3 |
11-01 | C. gingivalis | Periodontitis | U.S. | 256 | 0.75 | 256 | 0.5 | 256 | 0.125 | 0.25 | <0.016 | >256 | <0.064 | CfxA3 |
2-02 | C. gingivalis | Periodontitis | U.S. | 4 | 0.094 | 8 | 0.75 | 256 | 0.38 | 0.125 | <0.016 | 4 | <0.064 | CfxA2 |
10-02A | C. gingivalis | Periodontitis | U.S. | 1 | 0.032 | 6 | 0.25 | 24 | 0.047 | 1.5 | <0.016 | 4 | <0.064 | CfxA2 |
10-02B | C. gingivalis | Periodontitis | U.S. | 0.50 | 0.064 | 1 | 0.75 | 3 | 0.094 | 1 | <0.016 | 1.5 | <0.064 | CfxA2 |
149 | C. gingivalis | Periodontitis | Norway | 32 | 0.032 | 256 | 0.75 | 256 | 0.125 | 0.125 | <0.016 | 8 | <0.064 | CfxA2 |
7-02 | Capnocytophaga sp. | Periodontitis | U.S. | 2 | 0.064 | 0.125 | 0.125 | 0.75 | 0.094 | 0.125 | <0.016 | 0.064 | <0.064 | CfxA2 |
AC, amoxicillin; XL, amoxicillin-clavulanic acid; CT, cefotaxime; FX, cefoxitin; XM, cefuroxime; EM, erythromycin; TC, tetracycline; CM, clindamycin; TZ, ceftazidime; TZ-TZL, ceftazidime-ceftazidime-clavulanic acid.
NUG, necrotizing ulcerative gingivitis.
ND, not detected in PCR experiments with the CfxA primer.
Reference strains: 301, C. sputigena ATCC 33612T; 321, C. ochracea CIP 105321; 448, C. ochracea ATCC 27872T.
Amino acids substitutions: from CfxA (Bacteroides vulgatus) to CfxA2, E72K; from CfxA to CfxA3, E72K and D239Y (16, 19).
—, β-lactamase negative.