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Table 1 Biofilm formation by K. pneumoniae isolates before and after BAC adaptation

From: Evaluation of the impact of adaptation of Klebsiella pneumoniae clinical isolates to benzalkonium chloride on biofilm formation

Biofilm formationa

No. (%) of isolates

Before adaptation

After adaptation

NBP

14 (28%)

14 (28%)

WBP

21 (42%)

8 (16%)

MBP

8 (16%)

13 (26%)

SBP

7 (14%)

15 (30%)

  1. aNBP Non-biofilm producer, WBP Weak biofilm producer, MBP Moderate biofilm producer, SBP Strong biofilm producer