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Table 2 Variable antimicrobial drug susceptibility testing by broth microdilution susceptibility testing with Merlin Micronaut system (μg/ml), biochemical characteristics, API Coryne and Vitek2-compact profiles of 10 Corynebacterium ulcerans field isolates from water rats

From: Outbreak with clonally related isolates of Corynebacterium ulcerans in a group of water rats

isolate ID

TET

TILM

D-Trehalose

API Coryne profile;

Vitek2 CBC biotype number

Vitek2 ANC biotype number

(interpretation/ % ID)

(interpretation/ % ID)

(interpretation/ % ID)

131010012-1

R (>16)

R (32)

-

0 111 326 (Cul/99.7)

15431340407010 (Cul/97.0)

2363060410505 (Cul/99.0)

131010012-2

R (>16)

R (32)

+

0 111 326 (Cul/99.7)

15431340447010 (Cul/95.0)

2363020410505 (Cul/99.0)

131011719

R (>16)

R (32)

+

0 111 326 (Cul/99.7)

15031340406010 (Cul/99.0)

2363021414505 (Cul/91.0)

131013415-1

S (≤1)

R (32)

+

0 111 326 (Cul/99.7)

15431340447010 (Cul/94.0)

2363020400505 (Cul/97.0)

131013415-2

S (≤1)

R (32)

-

0 111 326 (Cul/99.7)

15030340407010 (Cul/97.0)

2363020410505 (Cul/99.0)

131015432-10

S (≤1)

R (32)

(+)

0 111 326 (Cul/99.7)

15431340447010 (Cul/94.0)

2363060410505 (Cul/95.0)

131015432-13

S (≤1)

I (16)

+

0 111 366 (Cul/99.9)

15431340447010 (Cul/94.0)

2363020410505 (Cul/99.0)

131015432-14

S (≤1)

I (16)

-

0 111 326 (Cul/99.7)

15431340407010 (Cul/97.0)

2363021410505 (Cul/95.0)

141001018

S (≤1)

I (16)

+

0 111 767 (Cul/99.9)

15431340407010 (Cul/98.0)

2363060412505 (Cul/90.0)

141001548

R (16)

I (16)

+

1 111 326 (Cul/98.0)

15431340407010 (Cul/97.0)

2363020410505 (Cul/99.0)

  1. Susceptibility was determined by using the Clinical Laboratory Standards Institute criteria for broth microdilution susceptibility testing for Corynebacterium spp [50].
  2. TET tetracycline,TILM tilmicosin, R resistant, I intermediate susceptible, S susceptible phenotype + positive, negative, (+) weak reaction, Cul C. ulcerans.