TABLE 1

Isolate information and molecular characterization of the L. monocytogenes genomes used in this study

IsolateTypeU.S. state or countryOutbreak associatedaYrSourcePasteur STCCbECReference(s)cGenBank accession no.
F23654bCaliforniaYes, Mexican-style cheese1985Cheese11I31, 32NC_002973.6
SLCC 23784eNAeNoNAPoultry731I33FR733644
LL1954bSwitzerlandYes, Vacherin Mont d'Or cheese1983Human11I34HF558398.1
Lm_18244bItalyNod2012Cheese processing facility22IV25AZIV00000000
ATCC 191174dNANoNASheep22IV33FR733643
HPB22624bItalyYes, corn (gastroenteritis)1997Human22IV35, 36AATL00000000
ScottA4bMassachusettsYes, milk1983Human2902IV37, 38CM001159.1
F42331/2bPennsylvaniaYes, unknown1987Human33VIII39JMUA00000000
FSL N1-0171/2bNANo1998Food33VIII36AARP00000000
G60541/2bIllinoisYes, chocolate milk (gastroenteritis)1994Human33VIII40JPTW00000000
SLCC 24827NANo1966Human33VIII33FR720325
SLCC 27551/2bNANo1967Chinchilla663VIII33FR733646
07PF07764bUSANoNAHuman4441, 42NC_017728.1
Clip804594bNANo1999Human44NC_012488.1
L3124bNAUnknownNACheese4430FR733642
FSL J2-0641/2bUSANo1989Human55VIAARO00000000.2
L11811/2bUSANo2009Human55VIJNGR00000000
L12541/2bUSANo2009Human55VIJNFI00000000
L26241/2bMultistate, USAYes, cantaloupe2011Human55VI4CP007686
L26631/2bMultistate, USAYes, cantaloupe2011Human55VI4JNHA00000000
Lm_18861/2bItalyNod2012Cheese processing facility55VI25AZIX00000000
H78584bMultistate, USAYes, frankfurter1998Frankfurter66II32AADR00000000
G45991/2bItalyYes, unknown (gastroenteritis)1993Human595943JPTX00000000
FSL J1-1751/2bUSANoNAWater8736AARK00000000
FSL J1-1941/2bUSANo1997Human8836AARJ00000000
SLCC 25403bUSANo1956Human61733FR733645
10403S1/2aUSANo1987Reference strain857VII36AARZ00000000
J26921/2aUSANo2003Human77VIIJNGJ00000000
L18461/2aLouisianaYes, hog head cheese2010Human77VII44CP007688
L26261/2aMultistate, USAYes, cantaloupe2011Human5617VII4CP007684
L26761/2aMultistate, USAYes, cantaloupe2011Human77VII4CP007685
SLCC 58501/2aUnited KingdomNo1924Rabbit127VII33FR733647
EGD1/2aNANoNAReference strain127VII45NC_022568.1
08_55781/2aCanadaYes, deli meat2008Human2928V26NC_013766.1
08_59231/2aCanadaYes, deli meat2008Human1208V26NC_013768.1
Lm_18231/2aItalyNod2012Cheese processing facility88V25AZIU00000000
Lm_18891/2aItalyNod2012Cheese processing facility88V25AZIY00000000
EGDe1/2aNANoNAReference strain35946NC_003210.1
FSL R2-5611/2cUSANoNAHuman9936AARS00000000
LO281/2cNANo1985Reference strain210936AARY00000000
SLCC 23721/2cUnited KingdomNo1935Human122933FR733648
SLCC 24793cNANo1966NA9933FR733649
F42351/2aPennsylvaniaYes, unknown1987Human1111III39JNGK00000000
F68541/2aOklahomaNo1988Human1111III32AADQ00000000
F69001/2aUSANo1988Human8611III27AARU00000000.2
J01611/2aMultistate, USAYes, turkey deli meat2000Human1111III27, 47AARW00000000
J02211/2aUSANo2000Human1111IIIJNGL00000000
J08471/2aUSANo2001Human1111IIIJNGM00000000
J28181/2aMultistate, USAYes, turkey deli meat2000Turkey deli meat8611III27, 47AARX00000000
L10231/2aMultistate, USAYes, Mexican-style cheese2009Human1111III48JNGN00000000
2012-L52401/2aMultistate, USAYes, ricotta salata2012Human10110112JNGO00000000
2012L-53231/2aMultistate, USAYes, ricotta salata2012Human10110112JNGY00000000
Lm_18401/2aItalyNod2012Cheese processing facility10110125AZIW00000000
Finland19883aFinlandYes, butter1988Unknown15536AART00000000
FSL J2-0031/2aUSANo1993Human89AARM00000000
FSL N3-1651/2aUSANoNASoil90AARQ00000000
L11181/2aMultistate, USAYes, sprouts2009Human5732JNGQ00000000
L20741/2aTexasYes, celery2010Human37849CP007689
L26251/2aMultistate, USAYes, cantaloupe2011Human294CP007687
SLCC 71793aAustriaNo1986Cheese9133FR733650
N53-11/2aDenmarkNo2002Salmon12112150HE999705.1
La1111/2aDenmarkNo1996Salmon processing facility12112150HE999704.1
Lm_18801/2aItalyNod2012Cheese processing facility12112125AZIZ00000000
FSL J2-0714cUSANo1994Animal1317136AARN00000000
SLCC 23764cNANoNAPoultry717133FR733651
HCC234aUSANoNACatfish20151NC_011660.1
L994aNetherlandsNo1950Cheese20152FM211688
M74aChinaNoNAMilk20153CP002816.1
FSL J1-2084aGeorgiaNo1998Animal56954AARL00000000
  • a Outbreaks designated according to food source, if known. All outbreaks were invasive listeriosis unless otherwise noted.

  • b Clonal complex numbers assigned based on Pasteur MLST ST as well as data presented by Ragon et al. (5).

  • c References are those describing the genome sequence of a given isolate as well as any publication describing the outbreak with which a given isolate was associated.

  • d Isolates from ricotta salata processing facility; not classified as outbreak related because no matching human cases were identified.

  • e NA, not available.