Isolates of Listeria monocytogenes saved from outbreaks of listeriosis, cases of sporadic listeriosis, and similar events do not always belong to a solitary genetic variant. Variants of the same strain may have evolved from a unique clone, and plasmid loss or gain and phage-mediated genetic changes are suggested as the main mechanism. Some of these reports are summarized in this short communication.
机构:
Univ Helsinki, Dept Food Hyg & Environm Hlth, Fac Vet Med, POB 66, FI-00014 Helsinki, FinlandUniv Helsinki, Dept Food Hyg & Environm Hlth, Fac Vet Med, POB 66, FI-00014 Helsinki, Finland
Ruusunen, Marjo
Lindstrom, Miia
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机构:
Univ Helsinki, Dept Food Hyg & Environm Hlth, Fac Vet Med, POB 66, FI-00014 Helsinki, FinlandUniv Helsinki, Dept Food Hyg & Environm Hlth, Fac Vet Med, POB 66, FI-00014 Helsinki, Finland