QIAstat-Dx® Meningitis/Encephalitis Panel Performance Evaluation Study

Inclusion Criteria: * Residual specimens (minimum 500μL) of CSF obtained by lumbar puncture from subjects with signs and symptoms of meningitis and/or encephalitis following completion of routine testing Specimen that have not undergone more than 3 freeze/thaw cycles. Exclusion Criteria: * Specimens not fitting criteria outlined above. * CSF obtained from an external ventricular drain or shunt source. * Lack of clear subject identification or label on residual banked CSF specimen. * Specimen has been centrifuged. * Obvious physical damage of banked residual specimen. * Repeat specimens from the same subject.