Molecular Epidemiology of Invasive Listeriosis due to Listeria monocytogenes in a Spanish Hospital over a Nine-Year Study Period, 2006–2014

Figure 4

Multilocus sequence typing of 17 Listeria monocytogenes isolates from sporadic cases of human listeriosis in Spain during the 2006–2014 period. The sequence types were clustered according to the sequence of the abcz housekeeping gene, using a minimum spanning tree (MST) tool available from the Pasteur Institute MLST database (http://www.pasteur.fr/recherche/genopole/PF8/mlst/). The STs from genetic lineages I and III (a) and genetic lineage II (b) found in this study are underlined. Sporadic listeriosis cases and outbreaks in Spain (2012–2014) listed in the Pasteur Institute MLST database are shown in boxes outlined with dotted lines. L. monocytogenes sample origins and PFGE profiles are included in each MST. The coloured zones surrounding groups of STs indicate clonal complexes (CC) differing by only one gene from other members of the group.

(a)

(b)