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. 2009 Jun 17;47(8):2496–2501. doi: 10.1128/JCM.02316-08

FIG. 4.

FIG. 4.

Contact study using inoculated sonication tubes exposed to 1/4 to 1/1 contact with the water in the sonication tank. Results are shown for sonication (100% effect) at 22°C with 100% effect with partial (1/4 to 1/2) to full (1/1) contact between the sonication tube (10 ml) and the water in the sonication tank. “CFU” denotes numbers of CFU on agar plates after culture of 100 μl of a bacterial solution (1,000 CFU/ml in test tubes) exposed to sonication of ultrasound. “Sonication (minutes)” denotes the duration of exposure to ultrasound in minutes.