PCR-single-stranded confirmational polymorphism analysis for non-culture-based subtyping of meningococcal strains in clinical specimens
| Autor: | K. A. V. Cartwright, W H Palmer, L Blackwell, Johnjoe McFadden, Jane Newcombe, S Dyer, L Blackman |
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| Rok vydání: | 1997 |
| Předmět: |
Microbiology (medical)
Molecular epidemiology Neisseria meningitidis Outbreak Single-strand conformation polymorphism Biology Meningococcal disease medicine.disease medicine.disease_cause Polymerase Chain Reaction Virology Subtyping Bacterial Typing Techniques law.invention Microbiology Meningococcal Infections law medicine Humans Typing Polymerase chain reaction Research Article |
| Zdroj: | Journal of Clinical Microbiology. 35:1809-1812 |
| ISSN: | 1098-660X 0095-1137 |
| Popis: | Subspecific typing of clinical meningococcal strains is important in the investigation of outbreaks and for disease surveillance. Serogrouping, typing, and subtyping of strains currently require isolation of a meningococcus from one or more clinical specimens. However, the increasing widespread practice of preadmission administration of parenteral antibiotics has resulted in a decrease in the frequency of positive cultures obtained from blood and cerebrospinal fluid. Confirmation of meningococcal disease can be obtained by meningococcus-specific PCR from both cerebrospinal fluid (H. Ni et al., Lancet 340:1432-1434, 1992) and peripheral blood (J. Newcombe et al., J. Clin. Microbiol. 34:1637-1640, 1996) specimens. However, current PCR protocols do not yield epidemiologically useful typing information. We report here the use of PCR-single-stranded confirmational polymorphism (PCR-SSCP) analysis to amplify and type meningococcal DNA present in clinical specimens. PCR-SSCP analysis with the VR1 region of the Neisseria meningitidis porA gene as the target produced unique banding patterns for each serosubtype. Direct PCR-SSCP of clinical specimens can therefore provide typing data that can be used to investigate the epidemiology of clusters of cases and outbreaks and for disease surveillance in situations in which culture of patient specimens proves negative. |
| Databáze: | OpenAIRE |
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