Rapid detection of the “high virulent” ST-17 clone of group B
First Claim
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1. A method for the in vitro detection of a high-virulence group B streptococcus strain of the ST-17 clone comprising:
- providing a biological sample comprising nucleic acid;
hybridizing the nucleic acid of the biological sample with a nucleic acid molecule that hybridizes to a nucleotide sequence consisting of the S10 nucleotide sequence of SEQ ID NO;
5, the S11a nucleotide sequence of SEQ ID NO;
13, or the S11b nucleotide sequence of SEQ ID NO;
15, or the complements thereof; and
detecting the presence or absence of the ST-17 clone by detecting the presence or absence of the S10, S11a or S11b nucleotide sequence or the complement thereof in the nucleic acid of the biological sample.
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Abstract
The present invention relates to polynucleotides enabling the rapid, simple and specific detection of Group B Streptococcus highly-virulent ST-17 clones.
The present invention also relates to the polypeptides encoded by said polynucleotides, as well as to antibodies directed or raised against said polypeptides.
The present invention also relates to kits and methods for the specific detection of Group B Streptococcus highly-virulent ST-17 clones, using the polynucleotides, the polypeptides or the antibodies according to the invention.
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Citations
26 Claims
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1. A method for the in vitro detection of a high-virulence group B streptococcus strain of the ST-17 clone comprising:
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providing a biological sample comprising nucleic acid; hybridizing the nucleic acid of the biological sample with a nucleic acid molecule that hybridizes to a nucleotide sequence consisting of the S10 nucleotide sequence of SEQ ID NO;
5, the S11a nucleotide sequence of SEQ ID NO;
13, or the S11b nucleotide sequence of SEQ ID NO;
15, or the complements thereof; anddetecting the presence or absence of the ST-17 clone by detecting the presence or absence of the S10, S11a or S11b nucleotide sequence or the complement thereof in the nucleic acid of the biological sample. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for the in vitro detection of a high-virulence group B streptococcus strain of the ST-17 clone comprising:
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providing a biological sample comprising nucleic acid; amplifying a fragment of a segment S10 nucleotide sequence or a fragment of a segment S11a or segment S11b nucleotide sequence of the ST-17 clone in the nucleic acid of the biological sample with primers that amplify a fragment of the segment S10 nucleotide sequence of SEQ ID NO;
5, the segment S11a nucleotide sequence of SEQ ID NO;
13 or the segment S11b nucleotide sequence of SEQ ID NO;
15; anddetecting the ST-17 clone by detecting the S10, S11a or S11b amplification product. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for the in vitro detection of a high-virulence group B streptococcus strain of the ST-17 clone comprising:
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providing a biological sample comprising nucleic acid; adding to the biological sample a primer set that amplifies a fragment of the S10 nucleotide sequence of SEQ ID NO;
5;subjecting the biological sample to an amplification reaction; and detecting the presence or absence of the ST-17 clone by detecting the presence or absence of an amplification product of the S10 nucleotide sequence in the nucleic acid of the biological sample. - View Dependent Claims (24, 25)
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26. A method for the in vitro detection of a high-virulence group B streptococcus strain of the ST-17 clone comprising:
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providing a biological sample comprising nucleic acid; adding to the biological sample a primer set that amplifies a fragment of the segment S10 nucleotide sequence of SEQ ID NO;
5, the segment S11a nucleotide sequence of SEQ ID NO;
13 or the segment S11b nucleotide sequence of SEQ ID NO;
15;subjecting the biological sample to an amplification reaction; and detecting the presence or absence of the ST-17 clone by detecting the presence or absence of an amplification product of the segment S10, segment S11a or segment S11b nucleotide sequence in the nucleic acid of the biological sample.
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Specification