Skip to main content

Table 1 Detection of presumptive extended spectrum beta-lactamase- (ESBL-) and carbapenemase- (CPM-) producing Enterobacterales from 20 stool specimens before and after storage at − 80 °C

From: Detection of colonisation by extended-spectrum beta-lactamase or carbapenemase producing Enterobacterales from frozen stool specimens

Time point

Pink colonies*

Blue colonies†

ESBL plate

KPC plate

ESBL plate

KPC plate

Fresh

19 (95)

1 (5)

10 (50)

1 (5)

Frozen #1

19 (95)

1 (5)

12 (60)

0 (0)

Frozen #2

19 (95)

1 (5)

12 (60)

0 (0)

p value‡

1.0

1.0

0.5

0.2

  1. *Indicative of Escherichia coli
  2. †Indicative of Klebsiella sp., Enterobacter sp., or Citrobacter sp. (KEC group)
  3. ‡Chi-squared test for trend (column values)
Back to article page

BMC Research Notes

ISSN: 1756-0500

Contact us