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Table 1 Strain origin and pulsotype (as determined by CDC PulseNet PFGE protocol) of isolates obtained during monitoring sampling of an industrial slaughterhouse over a four weeks period

From: Genomic characterization of Listeria monocytogenes isolates reveals that their persistence in a pig slaughterhouse is linked to the presence of benzalkonium chloride resistance genes

Isolates

ST ID

(PFGE typea)

Isolate characteristicsb

Isolation dates (visit)

Origin

p960

  

2011-02-26 (1)

Viscera tank

p962

  

2011-02-26 (1)

Chilling door

p958

 

Persistent Group A

2011-02-26 (1)

Saw

p975

ST9 (16)

 

2011-03-19 (2)

Saw

p985

  

2011-03-27 (3)

Saw

p984

  

2011-03-27 (3)

Bleeding

p963

    

p974

    

p964

ST5 (1)

 

2011-02-26 (1)

 

p966

    

p967

    

p965

    

p968

    

p971

   

meat conveyor

p972

ST5 (1)

Persistent Group B

2011-03-19 (2)

 

p969

    

p970

    

p973

    

p980

    

p977

    

p978

ST5 (1)

 

2011-03-27 (3)

 

p979

    

p981

    

p982

    

lis8316

ST5 (1)

 

2014-01-12

 

p959

ST5(10)

 

2011-02-26 (1)

Line

p961

ST9(18)

 

2011-02-26 (1)

Chilling entry

p957

ST1(8)

Sporadic Group C

2011-02-26 (1)

Saw

p976

ST5(9)

 

2011-03-19 (2)

Floor

p983

ST6(6)

 

2011-03-27 (3)

Door

  1. aPFGE type corresponds to the Chaire de recherche en salubrité des viandes (CRSV) nomenclature [12]
  2. bPersistent vs sporadic groups determined by PFGE