摘要 |
<p>The invention relates to the field of diagnosis of and vaccination against Streptococcal infections and to the detection of virulence markers of Streptococci. The invention provides a method for modulating virulence of a Streptococcus comprising modifying a genomic fragment of said Streptococcus wherein said genomic fragment comprises at least a functional part of a fragment identifiable by hybridisation in Streptococcus suis to a nucleic acid or fragment thereof as shown in figure 5.</p> |