We reformulated a multiplex PCR algorithm for serotyping of pneumococcal meningitis directly on cerebrospinal fluid (CSF). Compared to established methods on isolates, CSF-based PCR had at least 80% sensitivity and 100% specificity. In regional meningitis surveillance, CSF-based PCR increased the serotype information yield from 40% of cases (isolate testing) to 90%.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2815583PMC
http://dx.doi.org/10.1128/JCM.01402-09DOI Listing

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