Dendrograms (single linkage) representing the genetic relationship between L. monocytogenes isolates identified as cgMLST types L1-SL224-ST224-CT3426 (A), L1-SL315-ST194-CT4541 (B), L1-SL1-ST1-CT4576 (C), L2-SL155-ST155-CT4612 (D), L1-SL4-ST1624-CT5890 (E), and L1-SL315-ST194-CT5908 (F) using single-nucleotide polymorphism (SNP) analysis. Numbers on the branches indicate the SNP differences between isolates. These cgMLST types had more than two isolates and were observed to have isolates that shared very low levels (0 to 2) of SNP differences between them. a, regions within New Zealand have been anonymized; *, first clinical case for the cgMLST type, which was used as reference for the remaining isolates in the cgMLST type.