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2007:
Cheng Ying; Yue Lili; Elhanafi Driss; Kathariou S
Absence of serotype-specific surface antigen in laboratory variants of epidemic-associated Listeria monocytogenes strains.
Applied and environmental microbiology 2007;
73(
19):.
Variants that lacked reactivity with the serotype 4b-specific monoclonal antibody c74.22 and that lost susceptibility to certain Listeria- or serotype 4b-specific phages were identified in the course of genetic studies with serotype 4b Listeria monocytogenes strains H7550 and F2381L (epidemic clones I and II, respectively). Our findings suggest that such variants can become inadvertently established under laboratory conditions and suggest caution in work involving serotype 4b strains and genetic constructs thereof.
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