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. 2019 Sep 10;12:2819–2826. doi: 10.2147/IDR.S214960

Table 2.

The string test, serotyping, Serum killing and biofilm formation assay and diversity and frequence of the virulence factors of the blaKPC and blaNDM co-producing Klebsiella pneumoniae

graphic file with name IDR-12-2819-i0002.jpg

Notes: “+”: positive, “-”: negative; The green check represent the positive while the blank is the negative. Biofilm formation expressed as crystal violet optical density value (OD at 595 nm).

Abbreviations: ND, Not Determination; OD, optical density; G, grade.